Protocols used in Email

There are several protocols that are commonly used for email applications, including:

1. SMTP (Simple Mail Transfer Protocol): This is the main protocol used for sending and delivering email messages between servers. It is responsible for transmitting messages from the sender's mail server to the recipient's mail server.
2. IMAP (Internet Mail Access Protocol): This protocol is used for accessing and managing email messages stored on a mail server. It allows users to retrieve and delete messages, as well as manage their email folders and subscriptions.
3. POP (Post Office Protocol): This protocol is similar to IMAP, but it is designed for retrieving email messages from a server and storing them locally on a client device. POP is less commonly used than IMAP, as it does not allow users to manage their email folders and subscriptions on the server.
4. MAPI (Messaging Application Programming Interface): This protocol is used by Microsoft Outlook and other email clients to communicate with email servers. It allows users to send and receive email, as well as access and manage their email messages and folders.

Overall, these protocols work together to enable the sending and receiving of email messages over the Internet.

#systemdesign #protocols #email #mail