43 Folders has five fast email productivity tips.
The first one is shut off auto-check or at least set it to every 20 minutes. I’m really bad with this one. Thunderbird checks my email every few minutes and I’m constantly getting interrupted to see what has arrived. I can see where this tip alone would make me more productive. 
Welcome to johnhesch.com, a blog about my life, projects, and interests. I have been blogging for over 10 years in one form or another.