SMTP

Updated: 10/17/2017 by Computer Hope
SMTP in red lettering, surrounded by binary code.

Short for simple mail transfer protocol, SMTP is an Internet standard for the sending of e-mail messages over port 25. While it is mostly used for transfer from one mail server to another, some client mail applications use SMTP for relaying messages; whereas receiving happens via POP (post office protocol) or IMAP (Internet Message Access Protocol).

Tip

If you are looking for your SMTP address or SMTP server, this information is only obtainable from your ISP (Internet service provider) or e-mail provider.

Computer acronyms, E-mail, E-mail terms, Network terms, Protocol, X.400