Regex question

[Alex Neuman van der Hans]

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Craig Daters wrote:

> On Jun 28, 2005, at 2:45 PM, Alex Neuman van der Hans wrote:
>
> >Craig Daters wrote:
>
> >>On Jun 28, 2005, at 7:38 AM, Rick Cooper wrote:
> >><--snipped for cleanliness sake-->
> >>
> >>>>messages is not a problem. I have been feeding all of these to the
> >>>>Baysian database to bring their scores up to an acceptable level,
> >>>>and
> >>>>I
> >>>>will certainly add a rule as well for SpamAssassin. I would prefer
> >>>>to
> >>>>stop these at the MTA level entirely and save to CPU power this
> >>>>would
> >>>>otherwise generate, but this is a start.
> >>>>
> >>>>
>
> <--snipped for cleanliness sake-->
>
> >>>There are, of course, more dealing with relaying and so forth but for
> >>>the
> >>>most part I have relatively few things that we definatly do not want,
> >>>pass
> >>>through to MS to deal with, and I haven't generated a bounce in so
> >>>long I
> >>>couldn't tell you the last time. Drop the stuff you *know* shouldn't
> >>>arrive
> >>>and let MS handle filename, type, archives, bad content, the marginal
> >>>spam,
> >>>etc.
> >>
> >>
> >>I am using Sendmail 8.13.1-2 (RHEL RPM) for my MTA. I like what you
> >>are
> >>saying here. I don't know how difficult these will be to implement. I
> >>have enabled Sendmail's option to not accept mail from non-FQDN
> >>sources, And I have blacklisted a couple of countries that have sent
> >>us
> >>spam in the past that I know we would never receive legitimate email
> >>from, but that is all.
> >>
> >How do you block mail from non-fqdn sources, exactly? Any url's to a
> >page showing examples? Thanks...
> >--
>
>
> Using Sendmail, simply commenting out the option in your sendmail.mc
> file:
>
> FEATURE(`accept_unresolvable_domains')dnl
>
> is supposed to do the trick.
>
> ---
> Craig Daters (craig at westpress.com)
> Systems Administrator
>
> West Press
> 1663 West Grant Road
> Tucson, Arizona 85745
>
> (520) 624-4939 x208
> (520) 624-2715 fax
> www.westpress.com
>
Already doing it... just didn't get the gist of the setting in question,
but "not accepting domains which can't be resolved" sounds reasonable,
so I've always disabled it when I've encountered it.
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