This has happened to me on several occasions but today I was fed up with it and came here. I completed an important message in Thunderbird (latest Windows desktop version) and saved the draft so I could read it over with the Darling Bride before sending it. When I opened the draft to go over it with her, the draft literally stopped in the middle of a word - and nothing after that had been saved! Several carefully-worded paragraphs had simply vanished, even though I saved the draft when the message was complete. '''WHY is Thunderbird not saving entire messages when I finish them and hit SAVE???''' One can imagine my anger and frustration of trying to recall, word for word, what I had written so I can rewrite it (and it's never as good as the original). I like the idea of Thunderbird and not using the big data-mining email apps out there... but this is ridiculous!