Sometimes, in the heat of getting a lot of things done, I don't read emails I send as closely as I should. Is there an automated way to pop up warnings before a potentially-unpolite email is sent? I'm thinking about something that would say "wait, why don't you have a 'please' or 'would you' in that message?"
I'm using Thunderbird 2 on Ubuntu 9.04. I may be willing to switch email clients if another program offers this. (Using a Mac is also an option, which I'd prefer. Not sure if Mail.app has more options, though.)
Thanks for your help!