Re: sendmail/smail with relaying blocks?
Tim Cutts wrote:
>My exim package currently allows relaying; as Craig points out below, what
>you allow relaying to/from is extremely site-dependent. I think it is
>more sensible to allow relaying by default; without it remote mail from
>Eudora and the like will fail, and I'd rather it worked by default.
I can only speak for Claus Aßmann's sendmail config options (it's at
http://www.informatik.uni-kiel.de/%7Eca/email/check.html ; I've looked
it up in the meantime :-)
These should work in that case, because as long as either the MAIL
FROM or RCPT TO line expands to something that matches a list of
permissible IP addresses, the mail goes through. I have no idea how
this would work with Exim, though.
>I think most
>spammers are probably morons who don't actually have a clue how mail
The clue level is rising, thanks to cyberpromo :-(
>In exim you can restrict it to certain networks. For example, my SG site
>restricts relaying to hosts in 131.111, like so:
>sender_net_accept_relay = "126.96.36.199/255.255.0.0"
That sounds extremely useful.
>> 2. do we (debian) distribute a 'Spammers' and 'SpamDomains' file with the
>> package? what are the legal ramifications of doing that?
>That's unfeasible. The list grows too fast.
I agree. Paul Vixie (he of cron fame) runs a realtime BGP feed for
anyobdy who's interested, though. [Ugh, is there a debian-offtopic
mailing list? Maybe we should move the spam-specific parts of the
discussion there :-]
Thomas Koenig, Thomas.Koenig@ciw.uni-karlsruhe.de, email@example.com.
The joy of engineering is to find a straight line on a double
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