Hello, I don't know what has changed, but Thunderbird deleted older e-mails from both my and my daughter's Inboxes! The messages had not been starred, but they were important and thus saved in special folders (such as TRAVEL CONFIRMATIONS and COLLEGE INFO). Their disappearance has been highly problematic, distressing, frustrating! Does anyone know WHY this happened and how to FIX/PREVENT it? We Tried the following fix, but we don't know if this is correct: > [Clicked] Triple Bar > Account Settings > Synchronization & Storage > Disk Space > [Checked] Don't Delete Any Messages > [Checked] Don't Delete Starred Messages. Incidentally, we saw the the box "Delete Messages Older than 45 days" was Checked, but neither of us had done that! Is this a Default? If so, IT MUST GO! (I had foreign travel confirmations that were ONLY in Inbox and couldn't be confirmed any other way.) Thank you!