I’ve just recently finished implementing a postfix content filter so that my email server will, itself, append signatures and random taglines to the bottom of any user’s email message. This means that it doesn’t matter what email client the person is using, they’ll still get their signature and random tagline when sending anything and using the server as their outgoing SMTP host.

This is pretty cool, because it means that I’ll get my signature now whether I’m at home or at work. While Imp (the Web based email interface that I use when I’m away from home) supports signatures – it does it by simply putting the text of the signature in the body of your message, rather than adding it after the fact. Which can cause some problems if you’re repyling to somebody and delete it. Also, Imp doesn’t support taglines, something I’ve been using for 15 years now.