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Dude, |
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|
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Lay off the emo angst. |
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|
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The only "solution" to being completely spam-free is going to moderation on |
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every list, which is a huge burden, and I've got enough other stuff to do. |
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|
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I succinctly laid out the real problem on the mlmmj mailing list some months |
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ago, and also discovered at the time that it effects nearly every other mailing |
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list program. |
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|
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Simply put, the spammer finds some auto-responder that ignores the 'Precedence: |
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Bulk' header and replies anyway, and forges mail from that address, to the |
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subscribe address. The auto-responder confirms itself and is then subscribed. |
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|
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Now for pass two, the spammer forges a message from the auto-responder to the |
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list itself. The spam is now accepted to the list. |
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|
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Normally, that would be the end of it, one forge, one spam, however there is a |
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worse case. |
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|
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The Nero auto-responder was the most extreme example, because unlike most |
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auto-responders, it did NOT have any rate-limiter or loop detection. Thus after |
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a single forged mail, the auto-responder saw it's own messages, and replied to |
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them AGAIN. Our Gentoo systems can usually catch this as we have our own loop |
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detection, however the Nero auto-responder stripped those headers so it wasn't |
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detected until somebody reported the problem to me as the listadmin. |
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|
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If you see a spam that has slipped through (and it's not a lot, I count 5 spams |
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for gentoo-laptop in the last 30 days), I highly encourage you to send me an |
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email, NOT containing the message itself, but containing a link to the spam in |
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archives.gentoo.org (or any other web archive). Do not send the spam itself, as |
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it will be caught by my own filters (I get thousands of spams a day to |
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postmaster@g.o). |
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|
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-- |
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Robin Hugh Johnson |
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Gentoo Linux Developer & Infra Guy |
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E-Mail : robbat2@g.o |
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GnuPG FP : 11AC BA4F 4778 E3F6 E4ED F38E B27B 944E 3488 4E85 |