Wierd mail issue during exchange server shutdown.

I am an Exchange admin at my company and we've started using iPhone's instead of Blackberries. We recently had to shut down our exchange servers for the yearly power test this building we are in runs.

Now here's the issue: While the servers were turned off some people noticed that they weren’t able to access their mail - their mail app had no messages, it was just completely blank. Others noticed the same type of behavior for contacts; I am connected to the same server and noticed neither of these issues.

I have experienced this once before while being in the subway and having no reception. I would try to load up my Exchange mail and I couldn’t see any messages in my mailbox at all. After I resurfaced, my phone proceeded to re-sync all the mail all over again!

This is essentially what happened to these users during the Exchange sever shutdown and I am trying to figure out why something like this would happen if the iPhone keeps all the mail (or headers at the very least) locally on the phone.

Has anyone else experienced this issue? Anyone know of a fix for it?

Thanks in advance.
David

 

Exchange 2003.

No VPN. ISA 2006 <> Front-end <> Back-end Cluster.