Blocking top-level domains

[Mogens Melander]

Sorry, I don't. But google gave me this:

http://www.postfix.org/access.5.html

On Tue, July 22, 2014 04:11, Chris Barber wrote:
> 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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