I have about three months of mail in my mailbox and last night the "Date Received" on every email got set to "Today 3:41 AM", and all the email is marked unread. I checked some of the headers and everything looks fine. Apparently the Mail app doesn't use the headers for determining the "Date Received".
So, how does Mail determine the date received, how could it have spontaneously reset them all, and how do I get the correct dates back?
- Mark