iPhone ate my mail
Deleted mail was mysteriously disappearing from my email account. I could not find anything older than one week. The culprit turned out to be iPhone. I use it to read the same account. A well-hidden setting removed deleted messages. To check your iPhone: Go to Settings > Mail, Contacts, Calendars . Select the account from which deleted messages are disappearing. Go to Account Info > Advanced . Under Deleted Messages , change Remove to Never . Go back to Advanced . Go back to Account Info . Click Done . This is important to save the setting! My removal interval was set to After one week . Gotcha!