# I have a question about configuring the mail system

**URL:** <https://meta.discourse.org/t/i-have-a-question-about-configuring-the-mail-system/183739>\
**Category:** Self-hosting\
**Created:** [March 19, 2021, 9:36am UTC](https://meta.discourse.org/t/i-have-a-question-about-configuring-the-mail-system/183739 "2021-03-19T09:36:27Z")\
**Posts on this page:** 1\
**Showing post:** 13

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**Author:** ![hawm](https://avatars.discourse-cdn.com/v4/letter/h/f07891/32.png) [@hawm](https://meta.discourse.org/u/hawm)\
**Post date:** [March 21, 2021, 5:13am UTC](https://meta.discourse.org/t/i-have-a-question-about-configuring-the-mail-system/183739/13 "2021-03-21T05:13:53Z")

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It could be the port 465 issue.

> [@Discourse with other websites, SMTP issue: End of file reached](https://meta.discourse.org/t/discourse-with-other-websites-smtp-issue-end-of-file-reached/162893/5):
>
> Before I saw this I was going to recommend this change. Port 465 is SMTP-over-SSL, which is deprecated Port 587 is the MSA port (mail submission agent) on which STARTTLS (upgrade from a plaintext to a TLS connection) is typically supported When you had 465 in the configuration, Discourse was trying to talk plaintext to an SSL port.

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