Mailgun mail system not working (using Discourse)

Posted on August 29, 2019

So I’ve used discourse diagonostic tool and here’s the error :

==================== MAIL TEST ====================
For a robust test, get an address from http://www.mail-tester.com/
Or just send a test message to yourself.
Email address for mail test? ('n' to skip) [myemailadress@gmail.com]:
Sending mail to apertureproject.me@gmail.com. . .
Testing sending to myemailadress@gmail.com using postmaster@mg.mydomain.com:mailgunstmpkey@stmp.eu.mailgun.org:2525.
======================================== ERROR ========================================
Connection to port 2525 failed.
====================================== SOLUTION =======================================
The most likely problem is that your server has outgoing SMTP traffic blocked.
If you are using a service like Mailgun or Sendgrid, try using port 2525.
=======================================================================================

(I’ve removed all sensitive info here)

So it says that ports are closed. I’ve tried opening ports on the firewall typing ‘ufw allow 2525’ (ports numbers) but I still have these errors.

Any help is greatly appreciated

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Bobby

September 3, 2019

Hello,

What I could suggest here is, make sure that it is not something at Mailgun’s end, run a telnet test to the port quiz site:

telnet portquiz.net 2525

If you are able to connect then maybe Mailgun are rejecting the connections from your droplet, I could suggest reloading your UFW service and then check the status