F-Secure Protection Server Open Relay

Hello guys,

we have a domino server and an F-Secure Protection Server in front of it to act as a Spam filter. When I check my SMTP status of the MX record it shows that the server is Open Relay. We have made the Domino mail server to reject open relay messaging but aparently the F-Secure Protection server that is the first entry point seems to be an open relay server.

How can we change this, so that our server doesn't appear as an open relay?

Thank you.

Find more posts tagged with

Comments

Hmm, this is exactly as you say it is. I tested the relay with addresses from different domains (not example.com or the actual mail domain) and it sais "Relay denied".

Thank you so much for the quick answer.

Tomi

Hi,

Without knowing the details on how the open relay was tested its hard to say anything for sure. Usually the tests that are found on the internet (such as mxtoolbox.com) use example.com domain as their recipient domain which is by default allowed on F-Secure Protection Servers for testing purposes. Mails sent to example.com domain are however discarded and never delivered to anywhere. This will show up as "open relay" in the test, but if you try it with any other domain which is not configured to your server, you can see it being rejected.