We ran a GW2012 installation with one domain, one Post office and one Gwia.

Now we upgraded to GW2014 following the Caledonia Upgrade Guide.

Unfortunately our gwia is no longer able to receive inbounnd messages from the internet.

There is no postmaster running on our OES - Linux system and port 25 is only listened by gwia.

We did no changes to our internet provider and our firewall . All was fine before upgrading.

Sending e-mails outside to foreign domains is running.

What can i check in our installation ?