[CentOS] please block user

Robert Wolfe
Thu, 27 Aug 2015 14:54:36 -0000

Now see, I run a spam filter (run on CentOS, by the way *smiles*) and I have
several friends' domain emails running through it.  It has a pretty good
filter rate, too for being all open source.

-----Original Message-----
From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
Behalf Of m.roth at 5-cent.us
Sent: Thursday, August 27, 2015 9:30 AM
To: CentOS mailing list <centos at centos.org>
Subject: Re: [CentOS] please block user

Gary Stainburn wrote:
> Bad news Guys, they've just moved the emails to somewhere else and
> have started again:
<snip>

A suggestion: there should be a way to filter using *domain* AND mailhost; that
is, if emails come from a domain, and through one mailhost, then block the
domain. If many domains, and the same mailhost, only then block the mailhost.

I've been thinking about this since yesterday, when I got back from
vacation, to hear from my manager that he had to screw with mailman, because we
were getting a lot of emails from elsewhere, subscribing to one or more of our
lists... and having the target be one of three gmail accounts - a DDoS against
them (and we assume that they're doing it to a lot of other places).

Anyway, given the number of times I've been blocked by nixspam (which I
found is run by IX, a German IT mag, and that they don't answer emails to
*them*, either), I've been trying to think of a *reasonable* way to block
that doesn't do collective punishment to the many domains of a huge hosting
provider, and that's my best thought so far.

         mark

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