Thunderbird 技術支援討論區

Deleted messages used to stay in my Deleted or Deleted Messages folders until I manually deleted them. (I kept them for several months in case of late disputes with correspondents). However, they are now vanishing after a few days. Retention policy on each is 'Use my AC settings' and 'don't delete messages.' Any advice please?

I’m a longtime Thunderbird user.

Since I upgraded from Windows 10 to Windows 11, I cannot access my incoming email.

I have downloaded and reinstalled Thunderbird. When I try to open using the email symbol, I get directed to enroll another account. So I enrolled my original account.

I need step by step preferably printable direction, because I have low vision.

Following a change of password with my service provider, I can receive emails but cannot reply or send new emails. Tis is the error message: " Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) mail.btinternet.com. Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'."

Efforts to check or edit my Outgoing server (SMTP) password have proved a waste of time. Despite following all available instructions, screenshots, and online comments, I am unable to change or check my SMTP password. I am able to select 'Password' authenication, but not able view or edit the password. I have deleted that particular account and set up a new one with the same email address, but authentication problem remains. I have spent too much time trying to resolve this issue, so now I have no choice but to use annoying 'Windows Mail'. If I cannot resolve this issue, I will have no choice but to bid a sad farewell to the otherwise reliable Thunderbird which I have used for years.