# Problem with SMTP configuration

**URL:** <https://meta.discourse.org/t/problem-with-smtp-configuration/65892>\
**Category:** Self-hosting\
**Created:** [2017 年 7 月 9 日午後 3:01 UTC](https://meta.discourse.org/t/problem-with-smtp-configuration/65892 "2017-07-09T15:01:56Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![mpalmer](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/mpalmer/32/45740_2.png) [@mpalmer](https://meta.discourse.org/u/mpalmer)\
**Post date:** [2017 年 7 月 9 日午後 10:24 UTC](https://meta.discourse.org/t/problem-with-smtp-configuration/65892/2 "2017-07-09T22:24:31Z")

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Port 465 was, many years ago, SMTP over SSL/TLS – it doesn’t use STARTTLS. I say “was”, because it’s been deprecated for so many years that the IETF has deregistered smtps as a protocol. You should use either port 25 (SMTP) or port 587 (submission) and STARTTLS.

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