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From: mds at helices.org (Michael D Schleif) Subject: Spam with PGP "Jonathan A. Zdziarski" <jonathan@...learelephant.com> [2003:10:07:14:18:15-0400] scribed: > > My "obsolete" spamassassin catches 90% of the spam that gets through the > > DNSBLs into my inbox. > > 90% is extremely poor considering most probability-based filters run > from 96% - 99.6%. For the past couple months, I've been at literally > 100%, and I get 50-60 spams per day. No need for DNSBL. Just exactly *HOW* do you measure ``literally 100%''? How do you account for false positives and false negatives? Do you manually examine every message, whether or not flagged as spam? Personally, I receive between 2,000 and 3,500 messages each day, of which ~200 are flagged as spam via procmail rules and spamassassin. I receive email from a very heterogeneous mix of sources, including mailing lists, companies whose products are interesting, personal contacts, technical resources, &c. For me, one or two messages each day improperly flagged is the cost of doing business on the Internet. As impressive as that phrase ``literally 100%'' is, I am considerably skeptical. I have never -- in thirty years -- found any software utility that can beat five-nines statistics. How can we get hold of yours? -- Best Regards, mds - Dare to fix things before they break . . . - Our capacity for understanding is inversely proportional to how much we think we know. The more I know, the more I know I don't know . . . -- -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available Url : http://lists.grok.org.uk/pipermail/full-disclosure/attachments/20031007/6511fa47/attachment.bin
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