External Email Alert is a Thunderbird add-on that prompts users to confirm before sending any external email ensuring that they are aware of the action they are about to undertake.
To use this extension, you'll need Thunderbird version 1.5 to 2.0.0.*. Installing External Email Alert is simple - just download the extension file from the link below, save it to your hard disk, and open Add-ons from the Tools menu in Thunderbird. From there, click "Install," select the file you just downloaded, and click "OK."
The latest release of External Email Alert includes a version number fix (from 2.0 to 2.0.0.*). However, keep in mind that version 2.0.* is not supported. With External Email Alert, you can rest easy knowing that you'll never accidentally send an email to the wrong address again.
Version 0.6: N/A