A mail server is a server that sends and receives emails. The main components of a mail server are:
- Mail Transport Agent (MTA): This is responsible for transporting the mail between mail servers
- Mail Delivery Agent (MDA): This is responsible for delivering the mail from the server into a user's inbox
- Mail User Agent (MUA): This is responsible for providing a platform for composing and reading emails
Additionally, the mail server utilizes the following protocols:
- Simple Mail Transfer Protocol (SMTP): SMTP uses port 25 and powers the MTA in transferring the mail between servers
- Post Office Protocol (POP): POP uses port 110 and is responsible for downloading emails from the server to the user's local computer
- Internet ...