I have used both email and direct mail marketing service. I feel direct mail is more effective than email as it is highly targeted. We can reach a specific group of people whom we think are more likely to buy our product/service. People trust direct mail more. People trust direct mail more as the email offers go to their mail spam folders. So they don’t even mind opening it.
For me, direct mailing turned out very well. The ROI for direct mail campaign was very much high than it had for email. I have been a client of Troi Mailing Services at Toronto since 1 year and they are pretty good in this.

Please go through this blog about “What Can Direct Mail do for me?” in their site http://www.troimail.com/blog/mailing...ail-do-for-me/ . I hope it would be useful for you.