I know alot of people don't use Mailbird, reason being that it doesn't heave google contact sync. I have kept in touch with them and in the next couple weeks they who'll be releasing an update with Google contact sync. I am anxiously awaiting this update... I love Mailbird! I believe this wall be the selling point for Mailbird... In our day of technology contact sync is a must!
I tried Thunderbird but for some reason I just couldn't get it to send out multiple e-mail addresses. It would create a new e-mail for each address. So I got fed up trying to get it to work so went back to Windows Live Mail. Had you ones install the program for me but for some reason even though I went by the totorial it just didn't work no matter what.