Thunderbird : Issues

This is not the place for support questions. If you have Thunderbird issues that are not answered here, try the MozillaZine Forums instead.

Before checking the following issues, you might want to check the official list of known issues for Thunderbird 1.0 Issues.

Getting & Sending Mail

• Cannot send mail; problems with outgoing server.
• Error message when getting mail: "This folder is being processed".
• Duplicate messages are received when downloading mail.
• No new messages appear in my Inbox (although you may have received an alert saying you have new messages.)
• Forwarded messages are not readable by the people I sent them to.
• Incorrect Number of Unread Emails in my Inbox.
• Unable to write the email to the mailbox . Make sure the file system allows you write privileges, and you have enough disk space to copy the mailbox.
• Can not download large messages or attachments.
• Inbox stays blank for minutes, "Building file summary" seems to take forever.

Message Display

• Cannot view images in messages.
• Incoming messages have a dot (period) at the end which was not typed by the sender.
• Some messages have strange characters in their body text when displayed.
• Strange characters in the Subject.
• Junk tags in HTML messages.

Importing & Migrating

• Thunderbird shows empty folders after migrating my profile.
• Mail imported from Eudora is littered with html tags in the message body.

Miscellaneous

• Thunderbird marks messages as junk and moves them to Junk Folder as expected, but automatically delete junk messages older than “X” number of days is not working.
• Mail disappears from Thunderbird.
• When I create a new account, the account does not appear in the folders pane, and the mail for that account goes into Local Folders.
• Folder pane is not shown on the left-hand side of the main window.
• When I try to launch Thunderbird, it says my profile is already in use.
• Thunderbird forgets my password.
• Some of my mail files are huge, even though they contain few or no messages.
• When trying to print out Address Books, they do not print out Alphabetically.
• Messages reappear after I've moved or deleted them.
• Cannot delete IMAP folders.
• When using the global Inbox, message filters do not run automatically on incoming mail. They can only be run manually.
• Junk mail isn't moved to the Junk folder.
• Antivirus software problems.
• Why do I have nstmp folders?