Please consider dumping CBL

Discussion of EFnet's IRCDs (hybrid, ratbox, csircd)

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Please consider dumping CBL

Postby cybasheep » Sun Feb 12, 2006 5:32 pm

The recent flood of email-forging win32 virii causes lots and lots of addresses in dynamic ip ranges to get listed and literally every second day, I wake up having inherited a lease from somebody that had been infected and listed.

CBL is meant for blocking incoming email and nothing else. For email users on dynamic ip leases, it's easy to avoid running into a CBL-caused block/rejection by using their ISP's designated email server to send mail - unfortunately ISPs do not commonly provide IRC bouncers to allow the same no-brainer way of avoiding issues with blocklists when connecting to EFnet.

To whom it may concern: Please consider to stop using CBL for autobanning IP addresses from EFnet servers. Thanks.

edit: Or at least don't auto k-line for 24 hours - that's incidentally about the same time the average dynamic IP lease lasts.
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Postby munky » Mon Feb 13, 2006 6:12 pm

i agree that using an email blacklist is a bad idea, but about your other points:

dns blacklists generally have no way of specifying the age of an entry, so there is no way to say "only kline this blacklist if the entry is less than 24 hours old". the only way to administer that is to have the blacklist itself erase the entry after 24 hours.

that being said, if you are having problems with CBL on specific servers, it is best to contact the admins of that server directly, as many admins don't read these forums.
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