Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Rohkem teavet

lose settings

  • 1 vastus
  • 0 on selline probleem
  • 1 view
  • Viimati vastas Matt

more options

I have to reset my setting every time I start Thunderbird. The setting that seems to be systematically lost is the "mark messages as read on display." Incoming messages are not always in boldface so I don't realize I have new messages!! How can I fix these things. I am using a PC with Windows 10.

I have to reset my setting every time I start Thunderbird. The setting that seems to be systematically lost is the "mark messages as read on display." Incoming messages are not always in boldface so I don't realize I have new messages!! How can I fix these things. I am using a PC with Windows 10.

All Replies (1)

more options

Lost exactly how?

There is the legitimate issue that when some mail servers download mail to mobile devices like phones they mark mail as read on the server at that time if the protocol used in POP. Others use IMAP and everything done on the other device is synchronized to the Thunderbird account via IMAP so mail read on other devices and marked as read via that process comes into Thunderbird as read.

You say the issue is only when you start Thunderbird. Is that because once you are on Thunderbird new mail arrives unread because you have not already looked at it on your phone?