Rated 5 out of 5 stars

Great job! Works fine on Thunderbird 31.
I would like to suggest to also implement in the future a simple rule:
E-mails received at xxx@mailserver.xxx.com replay with identity xxx@xxx.com
That will be helpful for users using servers that in some situations generate a "ghost" e-mail by adding a subdomain. I have this problem right now; anyhow you extensions is helping me with this.

This review is for a previous version of the add-on (1.4.3).