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See more synonyms for SMTP on Thesaurus.com
  1. Simple Mail Transfer Protocol: a protocol for transferring email messages over the Internet.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for simple mail transfer protocol


abbreviation for
  1. simple mail transfer protocol: a protocol that enables e-mails to be sent between different servers
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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

simple mail transfer protocol in Science

Simple Mail Transfer Protocol

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