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So I'm new to Mailgun. I'm trying to use it to receive emails and forward them onto Parse so that I can save the information in them to a Parse database. I have a route set up correctly between Mailgun and Parse. Using the 'Send a sample POST' feature from Mailgun, data is added to my database in Parse. So my route is configured correctly from Mailgun to Parse.

Problem

Sending an email to sample-address@mydomain.com gives me a bounced email back, with an 550-Please turn on SMTP Authentication in your mail client error. It also says that it's not permitted to relay 550 through this server without authentication. Seems like it's a problem with Mailgun not correctly configuring the mailserver. Maybe?

Things I've Tried

  • Checking all MX records, CNAME, TXT records - all are set up according to Mailgun's specs
  • Not using a mydomain.com MX record - no change
  • Using a different address@mydomain.com, or a catchall forwarder from Mailgun - no change in status

Anyone know what's up? It's a weird error that I can't figure out how to debug. Any tips on debugging this would be highly appreciated.

Community
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Dylan Gattey
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  • I'd go through the process of setting up your domain again. Sounds like something is wonky in that area. – Chris Geirman Aug 29 '14 at 19:48
  • I'll add that in my experience, the send sample email didn't help me much. I found it more useful to simulate the post variables submitted to my listener. For that, I built my own test harness. – Chris Geirman Aug 29 '14 at 19:49
  • Thanks for that advice. I did eventually just build a test suite with Parse that sent data to echo back data to Parse. Figured it out. Thanks though! – Dylan Gattey Aug 30 '14 at 15:46

1 Answers1

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I think your mail client is not allowing mailgun to post data, You can lower down the security parameters in your mail client settings, allowing less trusted systems to post.

Zoe
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Deep Prakash
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