Envelopes and letters are the most traditional form of direct mail
Sending letters for advertising and direct marketing through the mail is one of the oldest forms of mass communication. Even in today’s online world, it’s still much more effective than e-mail!
Businesses and organizations have been printing and mailing letters for years, and it will continue because of the high ROI and impact. It’s great for nonprofit fundraisers and appeals, corporate sales letters, business information sheets, and much more.