proski Posted September 28, 2006 Share Posted September 28, 2006 I'm a paid subscriber. I have noticed that very little spam to my SpamCop address is blocked by the SpamCop blacklist. Most spam is blocked by SpamAssassin, and quite a lot of spam is getting to my INBOX. It used to be different. Until a few months ago, I had all blacklists enabled in the blacklist configuration (http://webmail.spamcop.net/horde/imp/spamcop/blacklists.php), and the SpamAssassin limit was set at the default 5. Very few spam would come through. I remember that about a third or all spam as shown by http://www.spamcop.net/reportheld?action=heldlog was blocked by bl.spamcop.net. Back then, the biggest problem wasn't the spam getting through - it were false positives, i.e. legitimate messages getting to the Held Mail folder. One day I got fed with it and disabled two blacklists that cause virtually all of the false positives - list.dsbl.org and dnsbl.sorbs.net. I also upped the SpamAssassin limit to 6 to allow some very technical posts with lots of unusual punctuation. As one would expect, false positives became quite rare, while more spam started getting to the INBOX. But over time, the amount of spam getting though the filters grew dramatically, exceeding the legitimate e-mail traffic, including several mailing lists I'm subscribed to. Initially, I attributed it to increased cleverness of the spammers. However, I noticed one anomaly. Very few spams are blocked by bl.spamcop.net now. Absolute majority of spams are blocked by SpamAssassin, even despite the limit increased to 6. I don't have any reliable statistics, but bl.spamcop.net catches one or two spams of 100-150 spams I'm getting in a day. I would say bl.spamcop.net almost certainly catches less than 5% of the spam I'm getting. I'm reporting all the spam that comes to me. My average reporting time is 4 hours. Am I wasting my time on those reports? Is bl.spamcop.net getting too lenient to spammers? Link to comment Share on other sites More sharing options...
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