# SMTPAuthenticationError: 535 Incorrect authentication data

**URL:** https://meta.discourse.org/t/smtpauthenticationerror-535-incorrect-authentication-data/208493
**Category:** Self-hosting
**Created:** [November 7, 2021, 7:06pm UTC](https://meta.discourse.org/t/smtpauthenticationerror-535-incorrect-authentication-data/208493 "2021-11-07T19:06:13Z")
**Posts on this page:** 1
**Showing post:** 2

<div class="post-metadata">

### Author: ![pfaffman](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/pfaffman/32/120154_2.png) [@pfaffman](https://meta.discourse.org/u/pfaffman)
#### Post date: [November 8, 2021, 12:09am UTC](https://meta.discourse.org/t/smtpauthenticationerror-535-incorrect-authentication-data/208493/2 "2021-11-08T00:09:12Z")

</div>

Is mail getting sent? Are there clues in the logs of the mail server?

All I can think of is [Troubleshooting email on a new Discourse install](https://meta.discourse.org/t/troubleshooting-email-on-a-new-discourse-install/16326)

---

_[View the full topic](https://meta.discourse.org/t/smtpauthenticationerror-535-incorrect-authentication-data/208493)._