# SMTP do not work

**URL:** https://meta.discourse.org/t/smtp-do-not-work/184884
**Category:** Self-hosting
**Created:** [March 30, 2021, 6:34pm UTC](https://meta.discourse.org/t/smtp-do-not-work/184884 "2021-03-30T18:34:16Z")
**Posts on this page:** 1
**Showing post:** 3

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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: [April 3, 2021, 7:01pm UTC](https://meta.discourse.org/t/smtp-do-not-work/184884/3 "2021-04-03T19:01:36Z")

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Try this

> [@SMTP connection problem, docker installation](https://meta.discourse.org/t/smtp-connection-problem-docker-installation/41981/3):
>
> If you use [discourse\_docker](https://github.com/discourse/discourse_docker), try setting this in your app.yml: DISCOURSE\_SMTP\_AUTHENTICATION: login If you don’t use docker, try setting this in your discourse.conf: smtp\_authentication = login By default, Discourse uses plain authentication (which is not what MS Exchange expects):

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_[View the full topic](https://meta.discourse.org/t/smtp-do-not-work/184884)._