Blocking top-level domains

[Johan Hendriks]

Ik you use Google and Google for the following you get enough results that
you can use.

postfix block toplevel domain

Regards
 Op 22 jul. 2014 04:39 schreef "Chris Barber" <chris at techquility.net>:

> Ahh, brilliant! We are using postfix instead of sendmail, do you know what
> the correspoding file in Postfix is for this?
>
> Thanks!
> Chris
>
>
> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info [mailto:
> mailscanner-bounces at lists.mailscanner.info] On Behalf Of Mogens Melander
> Sent: Saturday, July 19, 2014 1:38 AM
> To: mailscanner at lists.mailscanner.info
> Subject: Re: Blocking top-level domains
>
> Hi
>
> I'm doing stuff like that in sendmail's access (/etc/mail/access) file,
> with entries like:
>
> cn.ru    ERROR:"550 Reject : cn.ru - Spam source"
>
> Works like a charm :)
>
> On Fri, July 18, 2014 19:47, Bryan Laurila wrote:
> > I had an interesting situation creep up on me this week where I
> > thought that something was happening (or being processed) in
> > MailScanner/SpamAssassin but apparently it was not.
> >
> > I have two mail relay scanners running MailScanner & SpamAssassin on
> > Suse Linux.  These boxes scan incoming mail for spam & viruses and
> > then relay to my MS Exchange server.  I had an influx of spam this
> > week coming in from several top-level domains that we wouldn't
> > normally receive any valid emails from anyway, like .eu, .in, .asia,
> .club, etc.
> >
> >
> > Upon investigating the situation I found that the Trend Micro Scan
> > Mail service on my Exchange server crashed which lead me to the
> > discovery that MailScanner & SpamAssassin weren't filtering mail from
> > these unwanted top level domains as I thought and all that work was
> > being done by my exchange server.
> >
> > So, the question of the day is...  Where is the best place to turn on
> > filtering or set a rule somehow to filter unwanted top-level domains
> > at the MailScanner/SpamAssassin servers?
> >
> > Like all things in IT there are probably multiple ways of doing this
> > so I am curious as to what others are doing.  All thoughts & comments
> > are welcome.
> >
> > Thanks!
> >
> > Bryan S. Laurila
> > Senior Network Support Analyst
> > Dickinson County Healthcare System
> > 1721 South Stephenson Avenue
> > Iron Mountain, Michigan 49801
> >
>
>
> --
> Mogens Melander
> +66 8701 33224
>
>
> --
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> believed to be clean.
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