Snail Mail is a program designed to do one thing: print envelopes from your Address Book. It reads the Address Book database directly, so you don’t have to import your entries (as you must do with the more full-featured people book). You can display your contacts, sort them into groups, and filter them by typing a few letters into a search box. You can also print a single envelope or many envelopes for all of the entries in a group. Snail Mail lets you format the envelope to show or hide specific fields (such as title or company), and you can change the fonts and margins, or even paste in a custom logo.