Unable to write the email to the mailbox.
Windows 10 Thunderbird Version 159.0 (64-bit)
Today, Nov. 5, opened Thunderbird & got the Error message: Unable to write the email to the Mailbox. I have no idea why this happened. Turned off the antivirus for email, but that did no good.
Thunderbird worked fine yesterday
Chosen Solution
Great. Would please share your tips if they are Firefox related?
All Replies (6)
Do you have enough free space in your hard disk?
If free space is ok, you can try to start Thunderbird from troublshoot mode: https://support.mozilla.org/en-US/kb/troubleshoot-mode-thunderbird
There is plenty of free space. The "Unable to write" problem has cleared up, but "Windows not responding" is the problem now. Still working on it.
OK. What is it?
"Windows not responding" has also mostly cleared up.
Chosen Solution
Great. Would please share your tips if they are Firefox related?
Not Firefox. Opera. Used Norton Utilities to clean up files.