SMTP multiple domains - Relay not permitted

Question

Hi there...

My issue is that we run three companies which all have different external domain names.. we installed our UTM box a few months back and love it, SMTP was a breeze to setup and we didn't think we had a problem until today.

I need to confirm we are the owner of one of our domains and they want to send us an email.. we really only use one of our domain names for email so we did not notice that the other two could not receive emails until now.

This is our setup

Routing

Domains has the three domains as *.domain1.com, *.domain2.net, *.domain3.net
Route by: DNS hostname
Verify recipients: With callout

Relaying

Host-based Relay: our internal Exchange server

And not much else...

The error we get in the log is

H=mail-qk0-f175.google.com [xxx.xxx.xxx.xxx:36692 F=<xxx@gmail.com> rejected RCPT <xxx@domain1.net>: Relay not permitte

If anyone has any ideas I would be grateful.

Chris

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ChrisMorgan · Accepted Answer

Actually.. as final attempt to solve this .. after 3 hours of tinkering with different settings I tried adding another domain to the Routing tab 
 I added domain2.net and domain3.net without the "*" and i received 10 emails. 
 Maybe it was obvious from the documentation, but it seems to suggest you should use wildcards liberally. 
 Hopefully this will save someone else a few hours of frustration in the future. 
 
 Regards 
 Chris

ChrisMorgan · Answer

Emile, 
 As always its obvious when you finally find the answer.. and all to often it is staring you in the face all along. 
 Thank you for the extra explanation.. you are 100% right it was the "dot" in front of the domain name.. grr 
 Thanks again 
 Chris