Originally Posted by participant

Had the same problem because I restored a backup after doing a restore with iTunes to 1.1.3. Figured that it could be a rights issue as many of the problems seem to have been. So I took a look at what's under /private/var/mobile and noticed that some files/folders under Library were owned by root. Just did a

$ chown -R mobile:mobile /private/var/mobile

to fix it. Mail worked flawlessly after that.