This is a strange one, even for me.
I have a number of mailboxes setup on Exchange 2003 which I access from the same Outlook instance. Oddly only one has this issue.
Basically when I go to do an operation on one or more emails in the mailbox, on a delete it will happen in every case, for some reason it seems like there is a bottleneck and the connection to the server is stalled/lost until Exchange catches up to what it is that I want to do.
It's odd as it does not happen with the other mailboxes, which are setup in the exact same way, and any operation on those is almost instant.
Basically, this mailbox is the 'support@' mailbox and I simply delete mails once I have noted, read them.
Any ideas why this could be happening?
Thanks for your time.
Try running mailbox repair:
You might need to remove the "-Archive" setting, in case you don't have archive turned on.
While Vick Vega's answer was useful it didn't really help me narrow down the issue. It could even be a physical file fragmentation issue, in the database file or the VM storage file.
It is an odd one, I'm going to recreate the mailbox and see if that resolves it. Regardless I am moving to Exchange 2010 so hopefully the problem will be rectified regardless.