I uninstalled Thunderbird today. It lasted six days.
Originally, I installed it because I wanted to keep my work mail totally separate from my personal mail (which I keep in Opera/M2).
I set up TB(Thunderbird) with one single IMAP account – the IMAP folder only containing four folders: Drafts, INBOX, Sent and Trash. I started composing the weekly update to my boss — mail that is by nature rather lengthy, and not usually composed in one go.
While editing, I did some cut- and paste from a @text/html@ mail I had received, and to my horror discovered that Thunderbird gladly wanted rich text formatting in some form, HTML(HyperText Markup Language) – I presumed. So, I saved the mail and closed it – because I wanted to see if I could locate how to force TB never to send html.
When I had saved and closed the mail, it was still visible in my drafts folder. I then configured TB to “Convert Mail to Plain Text” when the recipient wasn’t listed as being able to receive HTML mail.
Then, my phone rang, and I absent-mindedly closed TB, because I needed to reach something on my desktop. When I reopened TB, to continue the monstrous mail I had written, _it was gone!_
I looked through every single folder, _but the mail was and is gone!_
Whether this is because I made some error, or there is a bug in Thunderbird is irrelevant to me: The risk of running Thunderbird is simply too great.
_I now do all my work-related mail in Opera. It saves my drafts automatically. It doesn’t throw away my mail, and it doesn’t compose e-mail that may get eaten by spam-filters because the mail is html._