You received an e-mail with an infected attachment then F-PROT Antivirus quarantines the whole Thunderbird's Inbox instead of taking action on just one e-mail. To prevent this issue, do the following:

1. Set F-PROT Antivirus to "Ask each time" instead of "Disinfect automatically" in the File System Protection, under Virus Scanners.

   For further information, see How to set up the automatic scanners.

2. Set F-PROT Antivirus to exclude Thunderbird's Inbox file (located in your profile folder) from being scanned for viruses.

   e.g. C:\Documents and Settings\<User>\Application Data\Thunderbird\
   Profiles\<example.default>\Mail\Local Folders\Inbox

   You may also want to exclude other mailbox files (such as "Sent", "Templates", etc.) from being scanned.

   For further information, see How to view, add or delete excluded files, folders and extensions.

3. Set Thunderbird (version 1.5 or later) to download each individual message to a separate file before adding it to your Inbox. This should make it easier for F-PROT Antivirus to quarantine individual messages instead of taking action on the whole Inbox file.
• Enable: "Tools : Options : Privacy : Anti-Virus : Allow anti-virus clients to quarantine individual incoming messages"

To recover a quarantined Thunderbird's Inbox:

1. Disable file system protection.
2. IMPORTANT: back up your profile folder.
3. Go to Virus scanners then Quarantine Items. Select the "Inbox" (or other affected mail file) and then click Restore.
4. In Thunderbird, delete the infected message, empty the Trash for the affected account and compact folders for the affected account.
5. Enable file system protection.
6. Verify all your e-mail is present.

For further information, please see the following:

• Antivirus software
• Email scanning - pros and cons