# SMTPAuthenticatieFout: 535 Ongeldige authenticatiegegevens
**URL:** https://meta.discourse.org/t/smtpauthenticationerror-535-incorrect-authentication-data/208493
**Category:** Self-hosting
**Created:** [7 november 2021 om 19:06 UTC](https://meta.discourse.org/t/smtpauthenticationerror-535-incorrect-authentication-data/208493 "2021-11-07T19:06:13Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@DavidO](https://meta.discourse.org/u/DavidO)
#### Post date: [7 november 2021 om 19:06 UTC](https://meta.discourse.org/t/smtpauthenticationerror-535-incorrect-authentication-data/208493/1 "2021-11-07T19:06:13Z")
Where would I find out how to handle all of the “ SMTPAuthenticationError: 535 Incorrect authentication data” errors that I’m seeing in my logs?
Apologies if this has been addressed before. I searched and didn’t find anything.
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### Author:  [@pfaffman](https://meta.discourse.org/u/pfaffman)
#### Post date: [8 november 2021 om 00:09 UTC](https://meta.discourse.org/t/smtpauthenticationerror-535-incorrect-authentication-data/208493/2 "2021-11-08T00:09:12Z")
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)
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### Author:  [@DavidO](https://meta.discourse.org/u/DavidO)
#### Post date: [8 november 2021 om 19:20 UTC](https://meta.discourse.org/t/smtpauthenticationerror-535-incorrect-authentication-data/208493/3 "2021-11-08T19:20:54Z")
Yes. Mail still seems to be coming to my test accounts. Just not highly confident that other issues aren’t going on. I’ll check that out. Thank you.
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### Author:  [@IAmGav](https://meta.discourse.org/u/IAmGav)
#### Post date: [8 november 2021 om 19:56 UTC](https://meta.discourse.org/t/smtpauthenticationerror-535-incorrect-authentication-data/208493/4 "2021-11-08T19:56:08Z")
if you dont come right, DM the details and i will log in and check out the settings,