Forwarding from a Fedora bug:
https://bugzilla.redhat.com/show_bug.cgi?id=554149

Description of problem:
Periodically, I try to expunge my Inbox of deleted messages and I get an error
message: Error while expunging folder. Clicking on the little warning triangle
in the lower left corner of the window yields a dialog box with the text: Error
while Expunging folder. Summary and folder mismatch, even after a sync. The
deleted messages are not expunged.

Version-Release number of selected component (if applicable):
2.28.2

How reproducible:
Intermittent. I can expunge a few times but eventually I get the error message.

Steps to Reproduce:
1.Fetch some mail
2.Delete a message
3.Type "Ctrl-e" to expunge

Actual results:
Receive warning message about summary/folder mismatch.

Expected results:
Delete messages are expunged.

Additional info:
This seems to have started happening after the most recent evolution update. I
didn't notice this problem for the previous few weeks I'd been using Fedora 12.