In the old days, when you had a Word document that you wanted to send in the mail, you had to print it out, walk to a post office, buy stamps, envelopes, and more. That was incredibly cumbersome, and requires you to own a printer, have paper, etc. Today, with Mailform, you can post your letters via USPS First Class Mail or USPS Certified Mail, with Mailform, right from Microsoft Word.
Check it out here. Or email email@example.com with questions, comments or suggestions.