Mail Factory 2.0
This software allows you to design and print envelopes, and shipping and address labels.
Data for addresses can be taken from Apple Address Book, MS Entourage, Now Contact, Eudora, MS Excel, vCards and text files. The application is integrated with iPhoto. You can print to most popular label layouts, or use the application with your DYMO printer. The package conforms to postal guidelines and includes mailing features like automatic address formatting.