WO2021129228A1 - E-mail sending method and apparatus - Google Patents

Abstract

An e-mail sending method and apparatus, which are used to improve the efficiency of sending mail. The method comprises: a device of a Java client firstly determining an SMTP long connection pool corresponding to a sending mail account in an e-mail to be sent; then acquiring historical sending information of a sent e-mail within a first set duration prior to the current moment; then, according to the historical sending information of the sent e-mail and K long connections of N network interfaces of M network operators comprised in the SMTP long connection pool, and from the N network interfaces of the M network operators, determining a target network interface of a target network operator corresponding to the sending mail account; and finally, by means of a long connection on the target network interface of the target network operator, sending, to an SMTP server, the e-mail to be sent. The method can save on mail system construction costs, and can achieve the aim of sending mail quickly.

Description

Method and device for sending email

Cross references to related applications

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 201911360822.X, and the application name is "a method and device for sending emails" on December 25, 2019, the entire content of which is incorporated by reference In this application.

Technical field

The present invention relates to the field of communications, in particular to a method and device for sending emails.

Background technique

With the development of computer technology, e-mail technology is becoming more and more popular. However, due to the security and real-time requirements of the financial industry, the financial industry also puts forward higher requirements on e-mail technology.

At present, if you want to build your own email system, you usually need to build a dedicated server cluster as a mail server, and you also need to build a firewall interception system and a spam identification system. Therefore, this establishment method has problems such as high maintenance cost and low connection efficiency. In order to solve these problems, the prior art generally reduces costs by renting a third-party mail server and the third-party mail server completes the mail sending work. In this case, the user only needs to select an interface from the interface provided by the third-party mail server every time an email is sent. After the client establishes a connection with the interface, the user can send the outgoing email to The third-party mail server, in turn, the third-party mail server performs subsequent sending work.

However, if the sending work is performed according to the above method, if the sending email account is different each time, the connection between the client and the interface will also be closed after each email is sent. Therefore, when using the new sending email account to send emails Sometimes the connection needs to be established again. It can be seen that the above method has the technical problem of low mail sending efficiency.

Summary of the invention

The invention provides a method and device for sending emails, which are used to improve the efficiency of sending emails.

In the first aspect, the present invention provides an email sending method, which includes: the client first determines the Simple Mail Transfer Protocol (SMTP) long connection pool corresponding to the sending email account in the email to be sent , And then obtain the historical sending information of the sent emails within the first set time period before the current time, and then determine from the N network interfaces of the M network operators according to the historical sending information of the sent emails The target network interface of the target network operator corresponding to the sending email account, so that the client can send the to-be-sent email to the SMTP server through the long connection on the target network interface of the target network operator. Among them, the SMTP persistent connection pool includes K persistent connections of N network interfaces of M network operators, and sent emails correspond to different persistent connections of different network interfaces of different network operators. Wherein, M, N, and K are all positive integers greater than or equal to 1.

The above design first establishes a long connection between the server and the client, and then calculates the available probability of each interface according to the historical sending information of the sent emails, that is, the information of the email sending records, and then selects the interface according to the probability. The e-mail is sent to the server through the connection of this interface, and finally the server completes the follow-up work. The technical solution can overcome the problems existing in the prior art, help improve the efficiency of e-mail sending, and make the interface selection strategy more flexible.

In a possible design, the historical sending information of sent emails may include the number of sent emails under N network interfaces of M network operators, the indication information of whether the sent emails were sent successfully, and The time it takes for the sent email to complete sending. In this case, the client determines the target network interface of the target network operator corresponding to the sending mailbox account from the N network interfaces of the M network operators according to the historical sending information of the sent emails, including: For any network interface of any network operator, the client can firstly according to the number of sent emails under each interface of each network operator, the indication information of whether the sent emails are sent successfully, and the sent electronic The time required for the mail to be sent, the available probability of the network interface is calculated, and then the target network interface of the target network operator corresponding to the sending mailbox account is determined according to the available probability of the N network interfaces of the M network operators . In the above design, the client can calculate the historical sending information of the sent emails corresponding to each interface (that is, the number of sent emails, whether it is successful, the time taken to complete the sending, etc.) to calculate the corresponding interface Available probability.

In a possible design, for any network interface of any network operator, the client can first calculate the weight value of the network interface according to the following formula 1, and then calculate the weight value according to the following formula 2. Availability probability of network interface:

Weight value=|(a×K ₁ +b×K ₂ +c×K ₃ +d×K ₄ )/(a+b+c+d)-K ₅ ^e +C|........ .. Formula One;

Available probability=weight value of the network interface/sum of the weight value of the N network interfaces of the M network operators..........Formula 2.

Among them, a is the number of e-mails sent successfully by the network interface within the first set duration and the time-consuming period falls within the period 1; b is the number of emails sent successfully by the network interface within the first set duration and the time-consuming The number of e-mails sent in period 2; c is the number of e-mails sent successfully by the network interface within the first set time period and time-consuming in period 3; d is the number of e-mails that the network interface is in the first setting The number of e-mails that have been sent successfully within a certain period of time and the time-consuming exceeds the set threshold; e is the number of e-mails that have failed to be sent by the network interface within the first set period of time. Among them, K ₁ is the weight corresponding to the duration interval one; K ₂ is the weight corresponding to the duration interval two; K ₃ is the weight corresponding to the duration interval three; K ₄ is the weight corresponding to the duration interval three; K ₅ is to set the first constant; C is to set the second constant.

The above design further introduces how the client calculates the available probability corresponding to each network interface according to the above formula 1 and formula 2. This design can ensure the flexibility of selecting the network interface and also has the advantages of simplicity and feasibility.

In a possible design, the client determines that the first network interface of the first network operator has not sent emails within the second set period of time according to the historical sending information of the sent emails, and determines the first network operator The first network interface of is the target network interface of the target network operator corresponding to the sending email account. Wherein, the first network interface of the first network operator is one of the N network interfaces of M network operators. In this design, the client can improve the network interface selection strategy, and then give priority to the interface that has not sent emails for a long time to send emails, which helps to prevent the interface from being used by a third-party mail server because it has not been used for a long time. That is, the SMTP server is disconnected. This design can make the technical scheme of the present invention more perfect and more flexible.

In a possible design, when the client determines that no email is sent within the third set time period, it closes the persistent connection in the SMTP persistent connection pool.

In the second aspect, the present invention provides an e-mail sending device. The technical effects of the device can be referred to the above method embodiments. The device includes: a processing unit for determining the SMTP corresponding to the sending email account in the email to be sent The long connection pool obtains the historical sending information of the sent emails within the first set time before the current moment, and according to the historical sending information of the sent emails, from the N network interfaces of M network operators, Determine the target network interface of the target network operator corresponding to the sending email account. The sending unit is used to send to the SMTP server the to-be-sent emails related to the sending mailbox account through the persistent connection on the target network interface of the target network operator. Among them, the SMTP persistent connection pool includes K persistent connections of N network interfaces of M network operators, and sent emails correspond to different persistent connections of different network interfaces of different network operators. Wherein, M, N, and K are all positive integers greater than or equal to 1.

In a possible embodiment, the historical sending information of sent emails includes: the number of sent emails under N network interfaces of M network operators, indication information about whether the sent emails are sent successfully, and The time it takes for the sent email to complete sending. In this case, the processing unit can also target any network interface of any network operator, according to the number of sent emails under each interface of each network operator, and whether the sent emails are sent successfully. The instruction information and the time required to complete the sending of the sent e-mail are calculated, the available probability of the network interface is calculated, and then the available probability of the N network interface of the M network operators is determined to determine the target network operator's corresponding to the sending mailbox account Target network interface.

In a possible embodiment, the processing unit may be directed to any network interface of any network operator, according to the number of sent emails under each interface of each network operator, and whether the sent emails are sent or not. The time required for successful and sent emails to be sent, calculate the available probability of the network interface, and determine the target network interface of the target network operator corresponding to the sending mailbox account according to the available probability of the N network interfaces of the M network operators .

In a possible embodiment, the processing unit can calculate the weight value of the network interface according to the following formula 1 for any network interface of any network operator, and then calculate the usable probability of the network interface according to the following formula 2 according to the weight value :

Weight value=|(a×K ₁ +b×K ₂ +c×K ₃ +d×K ₄ )/(a+b+c+d)-K ₅ ^e +C|........ .. Formula One;

Available probability = the weight value of the network interface/the sum of the weight values of the N network interfaces of the M network operators..........Formula 2;

Among them, a is the number of e-mails sent successfully by the network interface within the first set duration and the time-consuming period falls within the period 1; b is the number of e-mails sent successfully by the network interface within the first set duration and the time-consuming The number of e-mails sent in period 2; c is the number of e-mails sent successfully by the network interface within the first set time period and time-consuming in period 3; d is the number of e-mails that the network interface is in the first setting The number of e-mails that have been sent successfully within a certain period of time and the time-consuming exceeds the set threshold; e is the number of e-mails that have failed to be sent by the network interface within the first set period of time. Among them, K ₁ is the weight corresponding to the duration interval one; K ₂ is the weight corresponding to the duration interval two; K ₃ is the weight corresponding to the duration interval three; K ₄ is the weight corresponding to the duration interval three; K ₅ is to set the first constant; C is to set the second constant.

In a possible embodiment, the processing unit may also select a network interface that is not selected within the second set time period, connect to the SMTP server, and send emails.

In a possible embodiment, the processing unit may close the persistent connection in the SMTP persistent connection pool when it is determined that the email is not sent within the third set time period.

In a third aspect, the present invention provides a computing device including at least one processing unit and at least one storage unit, wherein the storage unit stores a computer program, and when the program is executed by the processing unit, the processing The unit executes the mail sending method described in any of the above-mentioned first aspect.

In a fourth aspect, the present invention provides a computer-readable storage medium that stores a computer program executable by a computing device. When the program runs on the computing device, the computing device executes the above-mentioned first aspect. Any of the described mail sending methods.

These or other aspects of the present invention will be more concise and understandable in the description of the following embodiments.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings.

FIG. 1 is a structural diagram of an email sending system provided by an embodiment of the application;

FIG. 2 is a structural diagram of an email sending system provided by an embodiment of the application;

FIG. 3 is a schematic flowchart of an email sending method provided by an embodiment of the application;

FIG. 4 is a schematic diagram of an email sending device provided by an embodiment of this application;

Fig. 5 is a schematic structural diagram of a computing device provided by an embodiment of the application.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

FIG. 1 is a structural diagram of an email sending system, which includes a JAVA (a computer programming language) client 101 and an SMTP (Simple Mail Transfer Protocol) server 103. Among them, the JAVA client 101 is provided with a JAVA MAIL (a programming interface related to email processing) component 102, the JAVA client 101 establishes a long connection with the SMTP server 103, and further, the JAVA client 101 sends the email through the long connection The email is sent to the SMTP server 103, and the SMTP server 103 processes the email and sends it to the corresponding recipient email account.

In a possible embodiment, the connection pool 104, the connection pool 105, and the connection pool 106 are generated in the JAVA MAIL component 102 in combination with the email sending system shown in FIG. 2. Among them, each sending email account corresponds to a connection pool, for example, connection pool 104 corresponds to sending email account a@.com; connection pool 105 corresponds to sending email account b@.com; connection pool 106 corresponds to sending email account c@ .com. Further, after the connection pool 104, the connection pool 105, and the connection pool 106 have established a connection with each network interface in the SMTP server 103, the JAVA MAIL component 102 sends an email to the SMTP server 103. The network interfaces corresponding to the connection pool 104 include: a network interface 107, a network interface 108, a network interface 109, a network interface 110, a network interface 111, and a network interface 112. The network interfaces corresponding to the connection pool 105 include: a network interface 107, a network interface 108, a network interface 109, a network interface 110, a network interface 111, and a network interface 112. The network interfaces corresponding to the connection pool 106 include: a network interface 107, a network interface 108, a network interface 109, a network interface 110, a network interface 111, and a network interface 112.

It should be noted that Figures 1 and 2 are only an exemplary simple description, and do not constitute a limitation on the solution. In specific implementation, the number of connection pools and the structure and function of the client and server can be determined by the field The technicians can set up as needed, and the specifics are not limited.

In order to further explain the embodiments of the present invention, FIG. 3 is a schematic flowchart of an email sending method. The method can be executed by the device where the JAVA client 101 is located. The method specifically includes the following steps:

Step 301: Determine the SMTP persistent connection pool corresponding to the sending mailbox account of the email to be sent, where the SMTP persistent connection pool includes K persistent connections of N network interfaces of M network operators, and M, N, and K are all Is a positive integer greater than or equal to 1.

Exemplarily, if the sending email account of the email to be sent is a@.com, the corresponding SMTP long connection pool is the connection pool 104. Optionally, the connection pool 104 establishes a long connection with the network interface 107, the network interface 108, the network interface 109, the network interface 110, the network interface 111, and the network interface 112 correspondingly.

Step 302: Acquire historical sending information of sent emails corresponding to each persistent connection of each network interface of each network operator within a set time period before the current time.

In a possible embodiment, the historical sending information of the sent emails may include: the number of sent emails under each network interface of each network operator, whether the sent emails are sent successfully, and the sent emails The time required for the mail to be sent.

Exemplarily, the historical sending information of the sent emails corresponding to each long connection of each network interface of the connection pool where the email to be sent is located within 5 minutes before the current time is obtained. For example, obtain the historical sending information of the sent emails corresponding to the network interface 107, the network interface 108, the network interface 109, the network interface 110, the network interface 111, and the network interface 112 in the connection pool 104. Further, the available probabilities corresponding to the network interface 107, the network interface 108, the network interface 109, the network interface 110, the network interface 111, and the network interface 112 are calculated.

Step 303: Determine the target network interface of the target network operator corresponding to the sending email account from the N network interfaces of the M network operators according to the historical sending information of the sent emails.

In a possible embodiment, for any network interface of any network operator, the client terminal can be based on the number of sent emails under each network interface of each network operator and whether the sent emails are sent or not. The time required for the successful transmission and the completion of the transmission of the sent email is calculated, and the available probability of the network interface is calculated. Further, the client terminal may determine the target network interface of the target network operator corresponding to the sending email account according to the available probabilities of the N network interfaces of the M network operators.

Optionally, the JAVA client 101 calculates the availability probability of the network interface 107 according to the number of sent emails of the network interface 107, whether the sent emails are successfully sent, and the time required for the sent emails to be sent. Further, the target network interface is determined according to the available probabilities of the network interface 107, the network interface 108, the network interface 109, the network interface 110, the network interface 111, and the network interface 112.

Wherein, in a possible embodiment, the client first calculates the weight value of the network interface according to the following formula 1 for any network interface of any network operator, and then according to the weight value, according to the following formula 2 Calculate the available probability of the network interface:

Weight value=|(a×K ₁ +b×K ₂ +c×K ₃ +d×K ₄ )/(a+b+c+d)-K ₅ ^e +C|........ .. Formula One;

Available probability=weight value of the network interface/sum of the weight value of the N network interfaces of the M network operators..........Formula 2.

Wherein, a is the number of emails sent successfully by the network interface within the first set time period and the time-consuming period falls within the period one; b is the network interface in the first set time period The number of e-mails that were successfully sent within the period of time 2; c is the number of e-mails that were successfully sent by the network interface within the first set period of time and fell within the period of time 3 D is the number of e-mails sent by the network interface that are successfully sent within the first set time period and the time-consuming exceeds the set threshold; e is the network interface in the first set The number of e-mails that failed to be sent within the duration. Among them, K ₁ is the weight corresponding to the duration interval one; K ₂ is the weight corresponding to the duration interval two; K ₃ is the weight corresponding to the duration interval three; K ₄ is the weight corresponding to the duration interval three; K To set the first constant; C to set the second constant.

In a possible embodiment, the JAVA client 101 may also periodically calculate the available probability of each network interface according to the e-mail sending information of a set duration. Exemplarily, the JAVA client 101 calculates the combination of the weight values of the network interface 107, the network interface 108, the network interface 109, the network interface 110, the network interface 111 and the network interface 112 every 2 minutes according to the e-mail sending information within the current 5 minutes. Get the available probability of each network interface.

Exemplarily, the network interface 107, the network interface 108, the network interface 109, the network interface 110, the network interface 111, and the network interface 112 provided by the network operator of the SMTP server 103 have sent email information in the current 5 minutes as shown in Table 1. Shown:

Table 1

Calculate the weights of network interface 107, network interface 108, network interface 109, network interface 110, network interface 111, and network interface 112 according to the historical sending information of sent emails in Table 1 and the initial packet weights shown in Table 2. value.

Table 2

time consuming	Group weight
0-300ms	100
300ms-800ms	50
800ms–1500ms	15
More than 1500ms	5

Exemplarily, the JAVA client 101 calculates the weight value of the network interface 107 according to the following formula 1:

Weight value=|(a×100+b×50+c×15+d×5)/(a+b+c+d)-5 ^e +1|..........Formula one;

Optionally, a is the number of emails sent successfully by the network interface 107 within the current 5 minutes and the time-consuming is 0-300ms; b is the number of emails sent successfully by the network interface 107 within the current 5 minutes and the time-consuming is 300ms- The number of emails sent in 800ms; c is the number of emails sent successfully by the network interface 107 in the current 5 minutes and the time is 800ms-1500ms; d is the number of emails sent by the network interface 107 in the current 5 minutes And the time-consuming is the number of e-mails sent that exceed 1500ms; e is the number of e-mails that the network interface 107 fails to send within the current 5 minutes, and the requests that are returned without a result after the timeout period are counted as failed.

Further, the weight value of the network interface 107=(1*100+3*50)/(1+3)-50+1=62.5. The network interface 110 has not connected within 5 minutes, so the weight value is 0. The network interface 111 failed to deliver within 5 minutes, and the weight value calculation result is 1. The network interface 112 is connected normally.

Further, the JAVA client 101 calculates the available probability of the network interface 107 according to formula 2:

Available probability=weight value of the network interface/sum of the weight value of the N network interfaces of the M network operators..........Formula 2.

The probability that the mail is sent through the network interface 107 is: 62.5/(62.5+38.3+50+1+32.5)=33.9%;

The probability of sending through the network interface 108 is: 38.3/(62.5+38.3+50+1+32.5)=20.8%;

The probability of sending through the network interface 109 is: 50/(62.5+38.3+50+1+32.5)=27.1%;

The probability of sending through the network interface 110 is 0;

The probability of sending through the network interface 111 is 1/(62.5+38.3+50+1+32.5)=0.54%;

The probability of sending through the network interface 112 is: 32.5/(62.5+38.3+50+1+32.5)=17.6%;

Further, the JAVA client 101 selects the target network interface according to the available probability corresponding to each network interface.

In a possible embodiment, the JAVA client 101 determines that the first network interface of the first network operator has not sent emails within the second set period of time according to the historical sending information of the sent emails, and then determines The first network interface of the first network operator is the target network interface of the target network operator corresponding to the sending email account. Wherein, the first network interface of the first network operator is one of the N network interfaces of the M network operators.

Optionally, it is set to preferentially select the network interface 110 to send an email once within 15 minutes.

In a possible embodiment, when the JAVA client 101 determines that no email is sent within the third set time period, it can close the persistent connection in the SMTP persistent connection pool. Exemplarily, there is no email sending task in the current 20 minutes, and the JAVA client 101 closes the connection with the network interface 107, the network interface 108, the network interface 109, the network interface 110, the network interface 111 and the network interface 112 in the SMTP server 103 . The JAVA client 101 actively closes the connection with the SMTP server to save communication resources and control various network interfaces.

In a possible embodiment, the client optimizing the group weight according to the historical sending information of the sent emails includes: the client adjusting any one of _{K 1} , K ₂ , K ₃ , and K _4, Then, the group weight is optimized according to the average duration of the sent emails within the fourth set duration. Exemplarily, the JAVA client 101 obtains the email information sent within the current 5 minutes, selects an instance, and adjusts the weight of any group in the instance, for example, increase the weight of the group that takes 0-300ms from 100 to 200; Then obtain the historical sending information of the sent emails of the set period, determine the average time consumption of emails based on this information, and adjust the grouping weight. For example, when the average time consumption becomes lower, increase the group weight.

Step 304: Send the to-be-sent e-mail related to the outgoing mailbox account to the SMTP server through the persistent connection on the target network interface of the target network operator.

In a possible embodiment, the JAVA client 101 may select a target network interface after obtaining the available probabilities corresponding to each network interface. Further, the JAVA client 101 sends an email to the SMTP server 103 through a long connection with the target interface. Optionally, the JAVA client 101 records this mail sending information.

In another possible embodiment, the JAVA client 101 establishes and retains long connections with all network interfaces.

In another possible embodiment, there may be more than one SMTP server serving as a third-party mail server at the same time. Optionally, multiple types of connection pools are grouped and managed according to SMTP servers, that is, connection pools corresponding to different SMTP servers can be different.

Based on the same technical concept, an embodiment of the present invention also provides an email sending device, which can execute the embodiment of the email sending method in FIG. 3. The device provided by the embodiment of the present invention is shown in FIG. 4 and includes:

The processing unit 401 is configured to determine the SMTP persistent connection pool corresponding to the outgoing mailbox account in the to-be-sent e-mail, and obtain the SMTP persistent connection pool corresponding to each persistent connection of each network interface within the first set time period before the current time. Based on the historical sending information of the sent emails, the target network interface of the target network operator corresponding to the sending mailbox account is determined from the N network interfaces of the M network operators according to the historical sending information of the sent emails. Among them, the SMTP persistent connection pool includes K persistent connections of N network interfaces of M network operators. The sent emails correspond to different persistent connections of different network interfaces of different network operators. M, N, and K are all greater than Or a positive integer equal to 1;

The sending unit 402 is configured to send to the SMTP server 103 the to-be-sent email related to the sending mailbox account through the persistent connection on the target network interface of the target network operator.

In a possible embodiment, the historical sending information of the sent emails includes: the number of sent emails under the network interface, whether the sent emails are sent successfully, and the time required for the sent emails to complete sending.

The processing unit 401 is specifically configured to: for any network interface of any network operator, according to the number of sent emails under each interface of each network operator, whether the sent emails are sent successfully, and the sent emails The time required for the mail to be sent is calculated, the available probability of the network interface is calculated, and the target network interface of the target network operator corresponding to the sending mailbox account is determined according to the available probability of the N network interfaces of the M network operators.

In a possible embodiment, the processing unit 401 is specifically configured to: for any network interface of any network operator, calculate the weight value of the network interface according to the following formula 1:

Weight value=|(a×K ₁ +b×K ₂ +c×K ₃ +d×K ₄ )/(a+b+c+d)-K ₅ ^e +C|........ .. Formula One;

According to the weight value, calculate the available probability of the network interface according to formula 2:

Available probability = the weight value of the network interface/the sum of the weight values of the N network interfaces of the M network operators..........Formula 2;

Among them, a is the number of e-mails sent successfully by the network interface within the first set duration and the time-consuming period falls within the period 1; b is the number of emails sent successfully by the network interface within the first set duration and the time-consuming The number of e-mails sent in period 2; c is the number of e-mails sent successfully by the network interface within the first set time period and time-consuming in period 3; d is the number of e-mails that the network interface is in the first setting The number of e-mails that have been sent successfully within a certain period of time and the time-consuming exceeds the set threshold; e is the number of e-mails that have failed to be sent by the network interface within the first set period of time. Among them, K ₁ is the weight corresponding to the duration interval one; K ₂ is the weight corresponding to the duration interval two; K ₃ is the weight corresponding to the duration interval three; K ₄ is the weight corresponding to the duration interval three; K ₅ is to set the first constant; C is to set the second constant.

In a possible embodiment, the processing unit 401 is further configured to select a network interface that is not selected within the second set time period, connect to the SMTP server, and send emails.

In a possible embodiment, the processing unit 401 closes the persistent connection in the SMTP persistent connection pool when it is determined that the email is not sent within the third set time period.

In a possible embodiment, an optimization unit is further included, configured to optimize the group weight according to the historical sending information of the sent emails.

In a possible embodiment, the optimization unit is specifically configured to adjust _{any one of K 1} , K ₂ , K ₃ , and K ₄ , and weight the group according to the average duration of the sent mail within the fourth set duration optimize.

Based on the same technical concept, an embodiment of the present invention provides a computing device. As shown in FIG. 5, it includes at least one processor 501 and a memory 502 connected to the at least one processor. The embodiment of the present invention does not limit the processor. For the specific connection medium between the 501 and the memory 502, the connection between the processor 501 and the memory 502 in FIG. 5 is taken as an example. The bus can be divided into address bus, data bus, control bus and so on.

In the embodiment of the present invention, the memory 502 stores instructions that can be executed by at least one processor 501, and the at least one processor 501 can execute the steps included in the foregoing settlement method by executing the instructions stored in the memory 502.

Among them, the processor 501 is the control center of the terminal device, which can use various interfaces and lines to connect various parts of the terminal device, and process data by running or executing instructions stored in the memory 502 and calling data stored in the memory 502. . Optionally, the processor 501 may include one or more processing units, and the processor 501 may integrate an application processor and a modem processor. The application processor mainly processes the operating system, user interface, and application programs. The adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 501. In some embodiments, the processor 501 and the memory 502 may be implemented on the same chip, and in some embodiments, they may also be implemented on separate chips.

The processor 501 may be a general-purpose processor, such as a central processing unit (CPU), a digital signal processor, an application specific integrated circuit (ASIC), a field programmable gate array or other programmable logic devices, discrete gates or transistors Logic devices and discrete hardware components can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.

The memory 502, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules. The memory 502 may include at least one type of storage medium, such as flash memory, hard disk, multimedia card, card-type memory, random access memory (Random Access Memory, RAM), static random access memory (Static Random Access Memory, SRAM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), magnetic memory, disk , CD, etc. The memory 502 is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto. The memory 502 in the embodiment of the present invention may also be a circuit or any other device capable of realizing a storage function for storing program instructions and/or data.

Based on the same technical concept, the embodiment of the present invention provides a computer-readable medium that stores a computer program executable by a terminal device. When the program runs on the terminal device, the terminal device executes the settlement method. step.

Those skilled in the art should understand that the embodiments of the present invention can be provided as a method or a computer program product. Therefore, the present invention may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

The present invention is described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are used to generate It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims (12)

1. An email sending method, characterized in that it comprises:

   Determine the Simple Mail Transfer Protocol SMTP persistent connection pool corresponding to the sending mailbox account in the email to be sent, where the SMTP persistent connection pool includes K persistent connections of N network interfaces of M network operators, M, N And K are both positive integers greater than or equal to 1;

   Acquiring historical sending information of sent emails within a first set time period before the current time, where the sent emails correspond to different long connections of different network interfaces of different network operators;

   Determine the target network interface of the target network operator corresponding to the sending email account from among the N network interfaces of the M network operators according to the historical sending information of the sent emails;

   The e-mail to be sent is sent to the SMTP server through the long connection on the target network interface of the target network operator.
2. The method according to claim 1, wherein the historical sending information of the sent emails comprises: the number of sent emails under each network interface of each network operator, and whether the sent emails are sent successfully , The time required for the sent email to be sent;

   According to the historical sending information of the sent emails, from the N network interfaces of the M network operators, determining the target network interface of the target network operator corresponding to the sending email account includes:

   For any network interface of any network operator, calculate based on the number of sent emails under each network interface of each network operator, whether the sent emails are successfully sent, and the time required to complete the sending of the sent emails. The available probability of the network interface;

   According to the available probabilities of the N network interfaces of the M network operators, the target network interface of the target network operator corresponding to the sending email account is determined.
3. The method according to claim 2, characterized in that, according to the number of sent emails under each interface of each network operator, and whether the sent emails are sent successfully, the time required for the sent emails to be sent is completed , Calculate the available probability of the network interface, including:

   For any network interface of any network operator, calculate the weight value of the network interface according to formula 1; and calculate the available probability of the network interface according to formula 2 according to the weight value;

   Weight value=|(a×K ₁ +b×K ₂ +c×K ₃ +d×K ₄ )/(a+b+c+d)-K ₅ ^e +C|........ .. Formula One;

   Available probability = the weight value of the network interface/the sum of the weight values of the N network interfaces of the M network operators..........Formula 2;

   Wherein, a is the number of emails sent successfully by the network interface within the first set time period and the time-consuming period falls within the period one; b is the network interface in the first set time period The number of emails that were successfully sent within the period of time 2; c is the number of emails that were successfully sent by the network interface within the first set period of time and fell within the period of time 3 D is the number of e-mails sent by the network interface that are successfully sent within the first set time period and the time-consuming exceeds the set threshold; e is the network interface in the first set The number of emails that failed to be sent within a period of time;

   Among them, K ₁ is the weight corresponding to the duration interval one; K ₂ is the weight corresponding to the duration interval two; K ₃ is the weight corresponding to the duration interval three; K ₄ is the weight corresponding to the duration interval three; K ₅ is to set the first constant; C is to set the second constant.
4. The method according to claim 1, characterized in that, according to the historical sending information of the sent emails, from the N network interfaces of the M network operators, it is determined to be the same as the sending email account The corresponding target network interface of the target network operator, including:

   According to the historical sending information of the sent emails, it is determined that the first network interface of the first network operator has not sent emails within a second set time period, where the first network interface of the first network operator is One of the N network interfaces of the M network operators;

   It is determined that the first network interface of the first network operator is the target network interface of the target network operator corresponding to the sending email account.
5. The method according to any one of claims 1 to 4, wherein the method further comprises:

   When it is determined that no email is sent within the third set time period, the persistent connection in the SMTP persistent connection pool is closed.
6. An e-mail sending device, characterized in that the device comprises:

   The processing unit is configured to determine the Simple Mail Transfer Protocol SMTP persistent connection pool corresponding to the sending mailbox account in the email to be sent, wherein the SMTP persistent connection pool includes K lengths of N network interfaces of M network operators Connected, M, N, and K are all positive integers greater than or equal to 1; to obtain historical sending information of sent emails within the first set period of time before the current moment, the sent emails correspond to different network operations respectively Different long connections of different network interfaces of the provider; according to the historical sending information of the sent emails, from the N network interfaces of the M network operators, determine the target network operation corresponding to the sending mailbox account The target network interface of the supplier;

   The sending unit is configured to send the to-be-sent email to the SMTP server through the persistent connection on the target network interface of the target network operator.
7. The device according to claim 6, wherein the historical sending information of the sent emails comprises: the number of sent emails under each network interface of each network operator, and whether the sent emails are successfully sent , The time required for the sent email to be sent;

   The processing unit is specifically used for:

   For any network interface of any network operator, calculate based on the number of sent emails under each network interface of each network operator, whether the sent emails are successfully sent, and the time required to complete the sending of the sent emails. The available probability of the network interface;

   According to the available probabilities of the N network interfaces of the M network operators, the target network interface of the target network operator corresponding to the sending email account is determined.
8. The device according to claim 7, wherein the processing unit is specifically configured to:

   For any network interface of any network operator, calculate the weight value of the network interface according to formula 1; and calculate the available probability of the network interface according to formula 2 according to the weight value;

   Weight value=|(a×K ₁ +b×K ₂ +c×K ₃ +d×K ₄ )/(a+b+c+d)-K ₅ ^e +C|........ .. Formula One;

   Available probability = the weight value of the network interface/the sum of the weight values of the N network interfaces of the M network operators..........Formula 2;

   Wherein, a is the number of emails sent successfully by the network interface within the first set time period and the time-consuming period falls within the period one; b is the network interface in the first set time period The number of emails that were successfully sent within the period of time 2; c is the number of emails that were successfully sent by the network interface within the first set period of time and fell within the period of time 3 D is the number of e-mails sent by the network interface that are successfully sent within the first set time period and the time-consuming exceeds the set threshold; e is the network interface in the first set The number of emails that failed to be sent within a period of time;

   Among them, K ₁ is the weight corresponding to the duration interval one; K ₂ is the weight corresponding to the duration interval two; K ₃ is the weight corresponding to the duration interval three; K ₄ is the weight corresponding to the duration interval three; K ₅ is to set the first constant; C is to set the second constant.
9. The device according to claim 6, wherein the processing unit is specifically configured to:

   According to the historical sending information of the sent emails, it is determined that the first network interface of the first network operator has not sent emails within a second set time period, where the first network interface of the first network operator is One of the N network interfaces of the M network operators;

   It is determined that the first network interface of the first network operator is the target network interface of the target network operator corresponding to the sending email account.
10. The device according to any one of claims 6 to 9, wherein the processing unit is further configured to:

    When it is determined that no email is sent within the third set time period, the persistent connection in the SMTP persistent connection pool is closed.
11. A computing device, characterized by comprising at least one processing unit and at least one storage unit, wherein the storage unit stores a computer program, and when the program is executed by the processing unit, the processing unit executes the right The method of any one of claims 1-5.
12. A computer-readable storage medium, characterized in that it stores a computer program executable by a computing device, and when the program runs on the computing device, the computing device executes any one of claims 1-5 Require the described method.

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