OT: MailMan spam protection (was Re: [ILUG] hey hun )
jm at jmason.org
Tue Jan 15 01:55:00 GMT 2002
Rick Moen said:
> Well, the alternative will be to further complicate the subscription
> ritual, in hopes of making it more diffcult to automate. There are
> reliable reports that some spammers have succeeded in scripting the
> GNU Mailman subscribe-confirm-spambomb-unsubscribe sequence, which
> is potentially bad news for those of us who've run spam-free lists
> until now by setting subscriber-only posting and then manually adding
> non-subscription addresses used by legitimate users to the "addresses of
> members accepted for posting to this list without implicit approval
> requirement" roster (a one-time hassle per such address).
There is another alternative, which I hacked up for the IIU list
using a perl "condom"  around the list addr. Instead of requiring
list mgr approval, it replies to an unsubscribed sender asking for
confirmation with a "magic keyword", and once the confirm comes in,
allows the mail through. Less work for the moderator...
I didn't know enough Python to implement it as a MM patch, though.
(: hmm, not really a condom I suppose, more a cap. but now I'm really
drifting OT ;)
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