Everytime we open Outlook 2010 joined to an Exchange 2010 server that is part of SBS 2011, we get a certificate error showing autodiscover."mydomain", this asks if you wish to install the certificate and a yes and no button, when we installed it, it said the certificate was valid but the name was wrong.
The funnything is it appears to be from *.webhostbox.net, ( I have never heard of them or why their certificate should be wanting to install ), I have installed a number of SBS 2011 servers before without any problems, including my own server.
All the clients and therfore the emails where originally in a 2003 server, they where backed up and after outlook was reconnected, the machines having been disconneted from the original domain and reconnected to the new domain on a new server, the Outlook accounts were newly created on each machine and the emails restored from the backup, Outook 2003 clients are not affected.