Sent mail gets hung and doesn't save, tried to fix and repaired sent folder and lost all emails IMAP
For my gmail account, "sent mail" was not being saved, it was hanging, trying to save, but wouldn't. Then the same happened to my email from another account (not gmail, one from a domain on namecheap).
On thunderbird I repaired the "sent mail" folder in my gmail account (repair folder). Now I have NO messages in that folder; they are all gone. There were 4,000 sent messages that are lost at this point. I have an IMAP setup, and I am hoping there is a way to restore the sent emails to the folder.
Also -thunderbird is really slow to get messages. Just another issue that seems alive around its performance right now. Still waiting for a message code for session and it's 15 minutes later- had to grab it off web mail for my gmail account.
Opaite Mbohovái (1)
Gmail make a copy of your sent mail as it goes out through their servers. The normal thing is to turn off Thunderbird's copy of the sent mail as there is no way to turn off Googles action. No one really needs two copies of every mail they send.