Mail Obtaining Method, Terminal, and System

A terminal, comprising:

• a memory comprising instructions;
• and
• a processor coupled to the memory, wherein the instructions cause the processor to be configured to:
• obtain a first transmission rate of a first network connection and a second transmission rate of a second network connection, wherein the first network connection and the second network connection are network connections established by the terminal to a mail server using different network protocols;
• obtain a new mail list from the mail server, wherein the new mail list comprises identifiers (IDs) of N mails and a data size of each mail in the N mails, and wherein N≧1;
• create a first download task and a second download task according to a preset rule, the first transmission rate and the second transmission rate, and the new mail list such that download time of the N mails in the new mail list is the shortest, wherein the first download task comprises IDs of M mails, wherein the second download task comprises IDs of K mails, wherein M≧0, and wherein K≧0;
• download, using the first network connection, a mail indicated by the first download task;
• and
• download, using the second network connection, a mail indicated by the second download task.

A communications system, comprising:

• a terminal;
• and
• a mail server connected to the terminal,
• wherein the terminal comprises a processor configured to:
• obtain a first transmission rate of a first network connection and a second transmission rate of a second network connection, wherein the first network connection and the second network connection are network connections established by the terminal to the mail server using different network protocols;
• obtain a new mail list from the mail server, wherein the new mail list comprises identifiers (IDs) of N mails and a data size of each mail in the N mails, and wherein N≧1;
• create a first download task and a second download task according to a preset rule, the first transmission rate, the second transmission rate, and the new mail list such that download time of the N mails in the new mail list is the shortest, wherein the first download task comprises IDs of M mails, wherein the second download task comprises IDs of K mails, wherein M≧0, and wherein K≧0;
• download, using the first network connection, a mail indicated by the first download task;
• and
• download, using the second network connection, a mail indicated by the second download task.