How to write the email address?

Different mailboxes have different suffixes, generally: name+@+website.

The international format is: user@mail.server.name, where user is the user name of the recipient. The email, server and name are the email server names of the recipients, and can also be domain names or IP addresses expressed in decimal numbers.

Commonly used in life are 163 mailbox, QQ mailbox, etc. The formats of them are user name @ 163.com and QQ number @qq.com respectively.

Extended data

Several Common E-mail Format Protocols

Common e-mail protocols are as follows: SMTP (Simple Mail Transfer Protocol), POP3 (post office protocol) and IMAP (Internet Mail Access Protocol). These protocols are defined by the TCP/IP protocol family.

SMTP (Simple Mail Transfer Protocol): SMTP is mainly responsible for how the underlying mail system transmits mail from one machine to another.

POP (post office protocol): version is POP3, which is a protocol for transmitting mail from e-mail box to local computer.

Imap (internet message access protocol): the version is IMAP4, which is an alternative protocol to POP3. It provides new mail retrieval and mail processing functions, so that users can see the title summary of the mail without downloading the mail body, and can operate the mail and folder directories on the server from the mail client software.

Support for SSL connections is integrated in most popular e-mail client programs.

In addition, many encryption technologies are also applied to the sending, receiving and reading of e-mail. They can provide encryption strength from 128 bits to 2048 bits. One-way encryption and symmetric key encryption are also widely supported.

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