Mail Transfer Agent (MTA)

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Abbreviations / Acronyms / Synonyms:

MTA

NIST SP 1800-16D, NIST SP 1800-6, NIST SP 800-45 Version 2

Definitions:

A program running on a mail server that receives messages from mail user agents or other MTAs and either forwards them to another MTA or, if the recipient is on the MTA, delivers the message to the local delivery agent (LDA) for delivery to the recipient. Common MTAs include Microsoft Exchange and sendmail.
Sources:
NIST SP 800-45 Version 2

Glossary Comments

Comments about specific definitions should be sent to the authors of the linked Source publication. For NIST publications, an email is usually found within the document.

Comments about the glossary's presentation and functionality should be sent to secglossary@nist.gov.

See NISTIR 7298 Rev. 3 for additional details.