Code review comment for lp:~igors/do-plugins/Thunderbird-fix

Bah. Sometimes, I hate bzr.

This branch looks like it's got some valuable improvements, but I can't actually pull it because of a repository version mismatch! If you could hit the “upgrade” button on your branch, it should convert it to a 2a repository, which I'll be able to pull.

It looks good, with the exception of the EmailList class. I'm not sure why you don't just pass a Dictionary<string, uint> around directly? The only value of EmailList appears to be .Add, which is only called once, and looks like it could replace with TryGetValue?