I have been battling the following issue for a few days now. We have xp machines with outlook 2010 connecting to an exchange 2013 server.
I have it set to auto-discover (microsoft actually setup for us).
When i set the following settings on the xp to msstp:*.domain.com it automatically reverts back to the below putting owapp in its place. without the * it will not connect.
is there a way to prevent the settings from being changed? I have another xp box that works just fine and the settings stay at *.domain.com