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.

SMTPAuthenticationError: 535 Incorrect authentication data

pfaffman (Jay Pfaffman) November 8, 2021, 12:09am 2

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

Topic		Replies	Views
ERROR – 535 auth failure installation email	6	654	September 11, 2023
UNEXPECTED ERROR Net::SMTPAuthenticationError installation	3	1183	August 23, 2022
Email for completion not sending because smtp are not correct installation email	22	939	January 24, 2023
Troubleshoot email on a new Discourse install sysadmin email , configuring , how-to	4	163931	January 10, 2024
SMTP with office365? installation email	12	6493	September 9, 2023