I am sure someone here would have had this problem.
I now have two clients with the same problem including myself.
Basically every time we send invoice from MYOB it gets stuck in Outlooks outbox, but our recipients confirm that they do receive the email.
We are running Server 2008 (Terminal Server RDS)
RDP into Server.
Virus protection is Trend Micro Worry Free Business Security.
I see some people mention KB2412171 seems to be an issue, but I can see this update was applied in the update history, but cant find it in add remove programs to be able to remove it, also tried removing kb2412171 from registry but it also cant find it.
Can anyone help.