Review for Use Bcc Instead by Boedacious
Rated 5 out of 5 stars
This a great add-on!! When I started using Tbird I just assumed all e-mail addresses in a group would be BCC'd as they are in many other email programs such as Gmail and Outlook...not so!! It's imparative to keep my group e-mail addresses private, so this resolved that issue.
Thanks so much for this!!
To create your own collections, you must have a Mozilla Add-ons account.