On Mon, 7 Oct 2013 19:38:38 -0400 Alex <mysqlstud...@gmail.com> wrote:
> I've asked the list a few times before about similar companies, such > as verticalresponse.com, which are also mass e-marketers, and I doubt > very much whether all recipients have signed up for their > "newsletters" or "webinars". My preference is to list quasi-legitimate spammers as spammers or at the very least as a "mixed" source. Companies like verticalresponse.com et al. have no economic incentive to curb spamming unless they are threatened with a bad reputation. I realize this may not go over well if you have customers who use the service or want to receive mail from it, so a light hand is required. We maintain an (IP-based) RBL and most of these quasi-legit spammers end up on the "mixed" list, which is as the name implies: These IPs are shady but not bad enough to block outright, so we add a couple of points. Regards, David.