Three reasons why you must clean your list now...
I used to think that the quality of my list didn't matter. I thought It would be better to send to the entire list and let failures take care of themselves. But that was then, and this is now, and over the years experience has taught me three important reasons why it is important to keep a clean list:
- Some popular mail servers may block all mail from you if you repeatedly send mail to a bad address on their domain.
- Repeatedly sending e-mail to bad addresses wastes bandwidth. Even if bandwidth is not an issue now, this problem will grow in scale with time.
- If you are going to do any type of response tracking, you must subtract out the failures for an accurate report.
So with these reasons in mind, I set out to clean our address list. But how to do it reliably was the question...
