Forum Discussion
How to Fix: 550 5.7.350 Remote server returned message detected as spam
Hello, I have an issue with sending emails from my organisation emails to other mailing servers. Anytime we send an email from our organisation, i get an auto-response of a 550 5.7.350 error. I ...
I found someone with the same problem (only with gmail) and they created a connector especially for email to gmail.
take a look:
https://answers.microsoft.com/en-us/msoffice/forum/all/getting-error-code-550-57350-how-do-i-resolve-this/003e1197-9cfc-4433-b2e0-4a65072442a9
take a look:
https://answers.microsoft.com/en-us/msoffice/forum/all/getting-error-code-550-57350-how-do-i-resolve-this/003e1197-9cfc-4433-b2e0-4a65072442a9
I'm not sure why people on that thread are discussing disabling IPv6. As long as the IPv6 addresses are correctly listed in the SPF record there should be no issues.