If any message or folder can't be deleted, apply this Microsoft fix:
http://support.microsoft.com/kb/941090
Although that article only mentions Outbox, it works for all mail folders.
If no improvement, try running the various repair functions in the
WMUtil program:
http://www.oehelp.com/WMUtil
If still no improvement, upgrade to Windows Live Mail:
http://download.live.com/wlmail
--
Gary VanderMolen, MS-MVP (Mail)
"Gary" <(E-Mail Removed)> wrote in message news:44742311-662B-453D-8B60-(E-Mail Removed)...
>I have several folders, storing e-mails of certain subjects/projects. When
> finished with the project, I can delete the messages from the folder, but I
> can't delete some of the folders. Some will, some won't. Any ideas?