Comment 2 for bug 1204189

Here is a temporary work-around for this problem.

1. Set `vm-imap-sync-on-get' to nil, so that VM doesn't attempt to save
attributes when you get new mail.

2. Set `vm-expunge-before-save' and `vm-expunge-before-quit' to `t' so that
the deleted messages are expunged before saving.

3. Set `vm-delete-after-saving' to `t' so that filed messages get deleted.

4. Use `s' to save folders. Or you can quit using `q' which does an
automatic save.

5. I suppose you will refrain from adding any labels to messages because VM
will attempt to save them to the server, which will then misbehave. (The
"junk" flag is not created by VM. You will need to figure out how it got
there.)

6. There will still be some VM-specific flags such as "forwarded" and
"redistributed" which Exchange won't understand. Hopefully, they won't be
too many to get into trouble with Exchange.