Now resolved
The exact error when testing the email connection is as follows: The request failed. The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.
We had to create a new exchange certificate and since then all incoming ermails are failing
“The Underlying connection was closed: could not establish trust relationship for the SSL/TLS secure channel”.
I have an exported copy of the certificate and imported to the mobile print server but we still getting the same error. Do I need to install the certificate somehwere else?