Rated 5 out of 5 stars

Excellent add-on. As a college student, making sure I send mail from the right address is really vital, and this add-on makes is virtually impossible to make a mistake. Love the fact that you can assign colors to each e-mail as an extra warning. I wrote to the developer an hour ago because an update was needed to support the latest beta, and he send me an updated build ten minutes later. Congrats!

This review is for a previous version of the add-on (1.8.3).