It may be telling that I want to keep typing .signature instead of signature -- I may be a bit old school. But I've also given up on keeping HTML out of signatures (and email in general), so I guess I'm adapting somewhat.

Regardless, the topic came up at work today about what we should have in our standard corporate signature, and here are the points I replied with based on my 20 years of having to read email...

  • The content of your email should be more interesting than your signature -- don't distract from the email content with a flashy signature
  • The postal address should be on our website, not in email signatures
  • If nobody has faxed you anything in the past 6 months then probably not worth it to include a fax number, put it on the website too
  • Be aware of the size of images you're including, and that attaching them to email adds another 1/3 because of encoding
  • Signatures should start with dash-dash-space (-- ) then a newline, then the rest of the signature
  • Signatures should not exceed 4 lines, unless a legal disclaimer is required
  • If you're going to include an email address make it clickable; probably the same with twitter, link to
  • You should include whatever phone numbers you actually answer / are expected to answer