Salutations and Signatures (by PW)

One of the things that my international coworkers insist on is a signature in any of their correspondence. They are from all over the world: England, Canada, Australia, Japan, India, and Germany.

We Americans have lost the civil art or the social pleasantries of salutations and signatures. I wonder how important people feel this is in the electronic emailing world, etc. Do people have their own signature line that defines them? (e.g. Cheers! Regards, etc.) Do they just rush out of the email like they do all the rest of their lives?

Very truly yours and sincerely,
PW