I am looking at transitioning from Outlook to Thunderbird -- mostly for the Google calendar integration. The one thing I am having problems with is the filters. I have multiple email addresses and I would like to be able to apply one filter to all of the email addresses. Ie: I get an email from Bob sent to me on my email address 1 and the email goes to bob's folder. Then I get an email from Bob on my email address 2. I would like to have the same rule to be effective for both of my email addresses so if bob uses either email address, the mail goes to bob's folder. Right now it appears that I have to create a unique filter if I get email from 'bob' on email address 1 vs email address 2. Am I missing something?