Email port 587

From Citizendium
Revision as of 14:48, 13 August 2024 by Pat Palmer (talk | contribs) (WP Attribution)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
This article is a stub and thus not approved.
Main Article
Discussion
Related Articles  [?]
Bibliography  [?]
External Links  [?]
Citable Version  [?]
 
This editable Main Article is under development and subject to a disclaimer.

Port 587 is a special TCP port reserved for authenticated submission of email messages. Authentication can be done over the standard port 25, but 587 has the advantage that it is seldom blocked by networks providing Internet access to travelers. The standard email port 25 is frequently blocked due to widespread abuse of these networks. This abuse does not occur with port 587, because servers listening on this port require authentication.

Attribution

Some content on this page may previously have appeared on Wikipedia.

Footnotes

  • RFC-5068, BCP-134 - "Email Submission Operations: Access and Accountability Requirements", Hutzler, et.al. 2007. Best Current Practices recommended for operators of email submission services.
  • RFC-4409 - "Message Submission for Mail", Gellens & Klensin, 2006. Requirements for submission of email using port 587.