My 'sent mail' has suddenly all disappeared - although still on the mail file server. Inbox mail is fine - but if I send a test message to myself, I get the reply, but the sent message is not saveb. I have uninstalled and reinstalled Thunderbird twice, n - the second time deleting the Mozilla folder under C:\users and then rebooting This happened whilst I was using Thunderbird. I have used Thunderbird for years without problems I have run a virus scan with Malwarebytes, but no problmes showed up. All folders are still vixible on my iPhone I am about to try reinstalling again. I don't want to have to change email clients. Any help much appreciated.. Thank you Joan Kemp