updated 02:07 pm EDT, Tue July 31, 2012
Accounts restored, old messages go missing
Some iCloud users are encountering serious problems with their email accounts, a thread on Apple's support forums indicates. Starting yesterday, some people have been seeing all of their old messages disappear from their iCloud accounts, including folder structures. Notes and aliases have also gone missing, and while affected people can now use iCloud email properly, the old data continues to be missing.
Some Apple tech support representatives have allegedly claimed that all of the old email content will eventually return. The problem appears to be connected to a recent outage, but Apple should, in theory, have backups of the of the data it can restore from.