Simple Mail Transfer Protocol (SMTP)

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Abbreviation(s) and Synonym(s):

Definition(s):

An MTA protocol defined by IETF RFC 2821. SMTP is the most commonly used MTA protocol.
Source(s):
NIST SP 800-45 Version 2

the primary protocol used to transfer electronic mail messages on the Internet.
Source(s):
NISTIR 7250 under Simple Mail Transfer Protocol
NISTIR 7387 under Simple Mail Transfer Protocol

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.

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Information Technology Laboratory

Computer Security Resource Center

Computer Security Resource Center

Simple Mail Transfer Protocol (SMTP)

Glossary Comments