Great sales copy has a direct impact on the ROI you will get from E-mail blasts and direct mail. Here are the results I get for my clients:
Direct mail letters that have received a 12% response rate on the high end and an average response rate of 4%.
Email blasts that average a 28% open rate and a 14% click through rate.
One of my direct mail campaigns was for an independent financial planner that targeted 100 large companies for taking over their retirement plan management. One of those companies was Papa Johns Pizza Corporate office. That was a $35 million retirement account. Direct mail done correctly will get you the results you are after.