We have SBS 2008 running with Exchange 2007
Users are getting continous logon prompts when launching their outlook client.
After further review, (internally) I noticed it is using the FQDN of the external mail server as domain\username
Why isnt it trying the local domian, somedomain.local\username
Also looking on the web, I saw that installing Service Pack or roll-up would fix this issue
I installed Exchange 2007 SP2 along with rollup 4 and this is still an issue.