SMTP connection problem, docker installation

Installation
1

I installed discourse, run it and trying to Sign in as administrator. But I did not receive activation email. I see this message in log file

Sent mail to my_email (10182.6ms)
Job exception: 504 5.7.4 Unrecognized authentication type

What does it mean? We are using Exchange as mail server

2

Could you provide more details about your SMTP connection settings? You could try testing with a third party service that is known to work e.g. Mailgun to see if the issue is with Discourse or the Exchange server.

1 Like
3

If you use 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):

https://github.com/discourse/discourse/blob/be3a5a56ccc284b352aa65080fc6b955f73cc72a/config/discourse_defaults.conf#L74

3 Likes
4

Friends,
Even I am getting the same error “Job exception: 504 5.7.4 Unrecognized authentication type”. Followed the instructions as “Claas Aug” mentioned. Still same issue.
I don’t see “DISCOURSE_SMTP_AUTHENTICATION: login” in app.yml

Here are contents of my app.yml file

  DISCOURSE_SMTP_ADDRESS: ourSMTPserver.company.com
  DISCOURSE_SMTP_PORT: 25
  DISCOURSE_SMTP_USER_NAME: testuser@company.com
  DISCOURSE_SMTP_PASSWORD: "PAssword"
  #DISCOURSE_SMTP_ENABLE_START_TLS: true           # (optional, default true)

Any one can help to troubleshoot it further?

5

Many thanks for this hint!
I think it should be added to Troubleshooting email on a new Discourse install because the error message in production.log Job exception: 504 5.7.4 Unrecognized authentication type is not really helpful to debug if you dont know you have to handle exchange a bit different.