Communication Between SMTP and POP3

[nehru]

How do SMTP Server store mails so that POP3 Server can read mails?

Or Rather How do both communicate with each other?

I want to use two different Servers say SMTP Server of company A and POP3 Server of Company B possibly on different computers.

Thanks

[Kevin]

It depends on what you mean.
POP3 is for recieving mail from your mail box. SMTP is for sending out email. When you send email you can (in theory) use any SMTP server that you have access to. When you download your mail you can only get it from the POP3 server that is holding it. Of course in most cases the email got to the POP3 server via SMTP because SMTP is how email usually moves from server to server.

So, the normal procedure for a single email is:
sender SMTP client > sender's SMTP server > recipient's SMTP server (may or may not also be POP3 server) > recipient's email server > recipient's POP3/IMAP client

If your question is "how do I have my client use different POP3 and SMTP servers that is easy, you just setup different servers that you have access to.

If your question is "how do I have different POP3 and SMTP servers for my domain" then that is a bit more complex and the solution would depend on which email packages you are using. For instance we use qmail which has a special protocol for moving email around inside of a network (QMQP).

[jayakathir]

I want to know about full deta POP3 Server, HTTP Server, IMAP Server

Regards

S. Kathir

[jayakathir]

I want to know about the full details of POP3 Server, HTTP Server, IMAP Server

Regards,

S. Kathir

[sheila]

How Email Works (http://computer.howstuffworks.com/email.htm)