Guest User!

You are not Sophos Staff.

This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

550 Access denied (not in relay or upstream list)

I am unable to receive emails going through my mail server. 

I get an immediate bounce back with this error

The error that the other server returned was:
550 Access denied (not in relay or upstream list)




If i disable SMTP protection all together the mail flows fine. I cant seem to find the problem in the smtp settings.

I've had the SMTP protection on for quite some time now without issue. I recently updated to 9.353-4 and then this started to happen.



This thread was automatically locked due to age.
Parents Reply
  • I already had the mail server in the upstream and relay lists.

    I did find the problem. I looked at one of my other UTMs and noticed that the one with the issue had the transparent mode enabled under advanced.

    After removing that, everything started working again.
Children
No Data