What are different email protocols explain in detail?

Question: What are different email protocols explain in detail?

Email protocols are a set of rules that enable email communication between servers and clients. They allow us to send, receive, and manage emails over the internet. There are three main types of email protocols: SMTP, POP3, and IMAP.

SMTP stands for Simple Mail Transfer Protocol and it is used for sending emails from one server to another. SMTP is an application layer protocol that uses TCP as the transport layer protocol. SMTP commands are used to identify the sender and receiver addresses and the message content. SMTP also provides notification for incoming emails and error messages if the delivery fails.

POP3 stands for Post Office Protocol version 3 and it is used for retrieving emails from a remote server to a local client. POP3 is also an application layer protocol that allows offline access to emails. POP3 downloads all the messages from the server to the client and then deletes them from the server, unless specified otherwise. POP3 supports only one mailbox per server and does not allow searching or manipulating emails on the server.

IMAP stands for Internet Message Access Protocol and it is used for accessing and managing emails on a remote server. IMAP is another application layer protocol that allows online access to emails. IMAP keeps all the messages on the server until the user deletes them. IMAP supports multiple mailboxes per server and allows searching, creating, deleting, and modifying emails on the server.

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