i may have worked out why the mailing lists that i administer have been not delivering messages to all of the registered members of those lists recently. it was because of a “smart” spammer.
if you recall, Rule #3 of The Rules of Spam states that Spammers are stooOOpid, so how could a “smart” spammer even exist in the first place?
in this case, it’s a matter of degrees. you can be smarter than the ordinary spammer, but if you’re a spammer yourself, you’re still pretty stooOOpid compared to those of us who aren’t spammers.
the “smart” spammer shared my IP address, and was very definitely sending out spam, but he was not flooding the net with spam, like most spammers do, he was trickling spam out at a rate that was just below the point at which my host providers’ spam alarms would indicate. thus, while other, more brash spammers got the mallet immediately, this “smart” spammer continued to share my IP address for several months before he got the mallet.
of course, this was also complicated by the fact that, for several weeks, my host providers’ answer to all of these problems i was having, was to delist my IP address from the CBL without actually attempting to discover why that address was listed at the CBL to begin with. which is where persistence comes into play. instead of accepting that “the host provider knows best” and closing the work ticket the first time they requested delisting, i actually checked CBL myself, to determine whether or not what the host provider had told me was true, and when it turned out that my IP address had been relisted, i called them on it… and then, i called them on it again, when they told me that everything was the way it should be… and then, i called them on it again… and again… and AGAIN!
i think they finally got the idea, because as of 10:00 this morning, my IP address had not been listed at the CBL for 24 hours, which is the longest time it has not been listed in 2 months.
let’s keep it that way, okay?