Rated 5 out of 5 stars

What would make this really useful to me is if it also selected all emails that I had send to that same address.

This review is for a previous version of the add-on (1.0.0a). 

Could you explain more your request ?

You need to select the mails sent to the same expeditors in the sent directory or you need to select all the mails in different directory ?

You can send me an email to fabien_arcellier@yahoo.fr to give me more details on your idea.