[Trilug-ontopic] mailing list server filtering setup questions
lopaki at gmail.com
Thu Dec 20 13:41:17 EST 2007
What if he just set lists.example.com to spool up the outside mail when
list-filtering is down?
Not that I could do that off the top of my head.
On 12/20/07, Brian McCullough <bdmc at bdmcc-us.com> wrote:
> On Thu, Dec 20, 2007 at 11:54:05AM -0500, Cristóbal Palmer wrote:
> > What would be a decent workaround for this? Say maybe something like...
> > lists.example.org. IN MX 5 list-filtering.example.org.
> > lists.example.org. IN MX 6 foobar.example.org.
> > lists.example.org. IN MX 10 lists.example.org.
> > Where foobar is a server set NOT to respond AT ALL. Stupid? Workable?
> > Bad netizenship?
> But what the others said was that they spammers would look for the
> LOWEST, which in all of your examples is the unfiltered machine. We
> strongly recommend that you NOT expose your unfiltered machine in any
> As far as filtering goes, Postfix first checking for valid sources
> ( various ways to do so ), dropping any junk on the floor ( or
> appropriate equivalent ), passing the mail on to ClamAV, and then
> finally on to Spamassassin ( or your choice ), before passing the valid
> mail on to further processing. As long as Postfix is properly refusing
> connections from junk sources, your machine should be sufficient for
> this role.
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