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I couldn't send email at all


I couldn’t send the e-mail through mailgun because of this reason. any advice?

5.7.1 [ 11] Our system has detected that this message is 5.7.1 not RFC 5322 compliant: 5.7.1 ‘From’ header is missing. 5.7.1 To reduce the amount of spam sent to Gmail, this message has been 5.7.1 blocked. Please visit 5.7.1 Google Product Forums 5.7.1 and review RFC 5322 specifications for more information. 9si12569259vkf.55 - gsmtp

Server Setup Information

  • Version of Rocket.Chat Server: 4.0.5
  • Operating System: Ubuntu 20.04 LST
  • Deployment Method: snap
  • Number of Running Instances:
  • DB Replicaset Oplog:
  • NodeJS Version:
  • MongoDB Version:
  • Proxy:
  • Firewalls involved:

Any additional Information

Hi! Can you confirm that the config at:

Admin > Email > Smtp > From Email

has the email mailgun expects it to be sent from?

1 Like

Yes, my setting was correct. I installed using snap(4 stable version). It doesn’t work, so I installed 3 stable version. It works in the end.

So with the same settings it worked on version 3 and not on version 4?

If that’s the case, can you specify the settings, excluding of course user and password?

I can try to reproduce this error and then we can open up an Issue.