Dictionary.com

SMTP

Save This Word!

abbreviation Computers.

Simple Mail Transfer Protocol: a protocol for transferring email messages over the internet.

QUIZZES

THINK YOU’VE GOT A HANDLE ON THIS US STATE NICKNAME QUIZ?

Did you ever collect all those state quarters? Put them to good use on this quiz about curious state monikers and the facts around them.
Question 1 of 8
Mississippi’s nickname comes from the magnificent trees that grow there. What is it?

Origin of SMTP

First recorded in 2000–05

Words nearby SMTP

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for SMTP

British Dictionary definitions for SMTP

SMTP

abbreviation for

simple mail transfer protocol: a protocol that enables e-mails to be sent between different servers
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for SMTP

SMTP
[ ĕs′ĕm-tē-pē ]

Short for Simple Mail Transfer Protocol. A protocol used on TCP/IP networks governing the transfer of e-mail.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Tired of Typos? Get Help Now!