Re: Blocking MX query

[Ibrahim <ibrahim1 () gmail com>]

Not block, but we use DNS transparent proxy mechanism. We need to do this
as our government request all ISP to block porn sites  :-)


Regards
Ibrahim

On Tue, Sep 4, 2012 at 5:13 PM, Bacon Zombie <baconzombie () gmail com> wrote:

> Are you saying that you only allow your subscribers to use your DNS Servers
> and block access to all other DNS Server?
>
> On 4 September 2012 11:07, Ibrahim <ibrahim1 () gmail com> wrote:
>
> > Hi All,
> >
> > I've read old archive about blocking SMTP port (TCP port 25). In my
> current
> > situation we are mobile operator and use NAT for our subscribers and we
> > have few spammers, a bit difficult to track it because mostly our
> > subscribers are prepaid services. If we block TCP port 25, there might be
> > "good" subscribers will not be able to send email.
> > We are thinking to block MX queries on our DNS server, so only spammer
> that
> > use their own SMTP server will got affected. All DNS queries from our
> > subscribers already redirected to our DNS cache servers. But seem Bind
> > don't have feature to block MX query. Any best practice to block MX
> query?
> > Regards
> > Ibrahim
>
>
>
> --
> ฤ๊๊๊๊๊็็็็็๊๊๊๊๊็็็็
>
> ฮ้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้
>
> ฦ้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้
>
>
> BaconZombie
>
> LOAD "*",8,1