Disk space is as much as you have mail. If not, there is something wrong with your profile. I have 15 GB of mail across 5 email accounts and Thunderbird is cur

Disk space is as much as you have mail. If not, there is something wrong with your profile. I have 15 GB of mail across 5 email accounts and Thunderbird is currently sitting at 350 MB RAM. Rarely crosses 500MB, I think. I am encountering some freezes and occasional crashes which are annoying, but on linux there is nothing better.