marketsmart

I have a little over 10 million opt in and co reg records. All full source. I am looking for a cheap software app to mail these records direct following Can-Spam. I need to be able to do tagging for the spam police that sign up for a site and then munge their address just so they can complain. I have mailed this list several times already and have only gotten 3 complaints from my ISP. Please let me know what you reccomend.

Thanks.....