One virtue of e-mail advertising is that different messages for the same product or service can…

One virtue of e-mail advertising is that different messages for the same product or service can be mailed to various customer groups who differ with respect to pertinent , demographic, or other characteristics. This ability to “mass customize” messages should increase marcom effectiveness, yet a cynic might look at this practice as a bit deceptive—somehow saying different things about your product to different audiences seems misleading. What is your view on this?