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Read Messages Suddenly Become Unread

Thunderbird Troubleshooting
zislispmz replied
zislispmz
zislispmz

TBird Version 91.4.1, Windows 10. Occasionally when I start TBird, a lot of messages that were read a long time previously are suddenly highlighted as unread. Also, Mark folder read doesn't mark the subfolders. So, to stop them from being highlighted, I have to descend to the lowest folder level and mark each one as read.

TBird Version 91.4.1, Windows 10. Occasionally when I start TBird, a lot of messages that were read a long time previously are suddenly highlighted as unread. Also, Mark folder read doesn't mark the subfolders. So, to stop them from being highlighted, I have to descend to the lowest folder level and mark each one as read.

All Replies (2)

Matt
Matt
  • Top 25 Contributor

is your account IMAP?

zislispmz
zislispmz Question owner

No, POP. The messages had been downloaded a long time previously. But suddenly TBird marked them as unread.