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lebobo

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Here is a option in KMS that seems to be very good to prevent spamming. This option is 'callerid'

Info about it : http://www.kerio.com/callerid/

How can I add my static IP into the callerid database ?
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Iassen Hristov

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You have to publish a TXT record in your DNS. See
<http://www.kerio.com/callerid/>

For me, much to my disappointment Caller-ID did not work. I used it for
more than 6 months and after I did the statistics it had rejected about 1%
of incoming connections, vs more than 30% based on black-lists (mainly
sbl-xbl.spamhaus.org)

Until a technology like this becomes mainstream, so that you could reject
the connection (or add a SpamAssassin score) based solely on the fact that
the domain does not have a Caller-ID record, it does not do much good.

--On Wednesday, February 02, 2005 20:17 +0100 lebobo <lebobo<_at_>hotmail.com>
wrote:

>
>
> Here is a option in KMS that seems to be very good to prevent spamming.
> This option is 'callerid'
>
> Info about it : http://www.kerio.com/callerid/
>
> How can I add my static IP into the callerid database ?
>
>





  •  
lebobo

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Iassen Hristov wrote on Wed, 02 February 2005 23:49

You have to publish a TXT record in your DNS. See
<http://www.kerio.com/callerid/>



I visit this web page but I don't find any information how to publish this TXT record... could you help me ?
  •  
Iassen Hristov

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It is rather simple.

Go to
<http://www.kerio.com/callerid/>
Type a domain name (or just leave the default of kerio.com)
Click "show details" and then go.

You can see which IP addresses are allowed to send e-mail for that domain.
In the "Original data from DNS" you can see what is the record you have to
place in DNS. You can compose your "xml" in a similar fashion.

Another simple case (which I use) is to say - the servers that are
receiving mail (my MX servers) are the only allowed to send e-mail on my
behalf. In this case the record would be

<ep xmlns="http://ms.net/1"><out><m><mx /></m></out></ep>

Now that you figured out what the content is, you need to publish it as a
TXT record for the "imaginary" host _ep

Here is an example on how to query the current content of a certain domain
(from a Linux box) - this is what the kerio web page does.

# host -t TXT _ep.kerio.com
_ep.kerio.com text "<ep xmlns='http://ms.net/1'
testing='true'><out><m><a>195.39.55.2</a><a>69.228.77.81 </a><a>195.39.55.5</a><a>195.39.55.11</a><a>195.39.35.48 </a><a>128.242.106.66</a><a>209.171.43.54</a></m></out ></ep>"

# host -t TXT _ep.databrokers.net
_ep.databrokers.net text "<ep
xmlns='http://ms.net/1'><out><m><mx/></m></out></ep>"


--On Thursday, February 03, 2005 22:19 +0100 lebobo <lebobo<_at_>hotmail.com>
wrote:

>
> Iassen Hristov wrote on Wed, 02 February 2005 23:49
>> You have to publish a TXT record in your DNS. See
>> <http://www.kerio.com/callerid/>
>
>
> I visit this web page but I don't find any information how to publish
> this TXT record... could you help me ?
>
>





  •  
Iassen Hristov

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And while you are at it, you might want to add an SPF record.
Go to
<http://spf.pobox.com/>
and follow the wizard they have.

Here is my record (again only the MX servers are allowed).

# host -t TXT databrokers.net
databrokers.net text "v=spf1 mx -all"

--On Friday, February 04, 2005 10:00 -0500 Iassen Hristov
<ih.ng<_at_>databrokers.net> wrote:

> It is rather simple.
>
> Go to
> <http://www.kerio.com/callerid/>
> Type a domain name (or just leave the default of kerio.com)
> Click "show details" and then go.
>
> You can see which IP addresses are allowed to send e-mail for that domain.
> In the "Original data from DNS" you can see what is the record you have to
> place in DNS. You can compose your "xml" in a similar fashion.
>
> Another simple case (which I use) is to say - the servers that are
> receiving mail (my MX servers) are the only allowed to send e-mail on my
> behalf. In this case the record would be
>
> <ep xmlns="http://ms.net/1"><out><m><mx /></m></out></ep>
>
> Now that you figured out what the content is, you need to publish it as a
> TXT record for the "imaginary" host _ep
>
> Here is an example on how to query the current content of a certain domain
> (from a Linux box) - this is what the kerio web page does.
>
># host -t TXT _ep.kerio.com
> _ep.kerio.com text "<ep xmlns='http://ms.net/1'
> testing='true'><out><m><a>195.39.55.2</a><a>69.228.77.81 </a><a>195.39.55.
> 5</a><a>195.39.55.11</a><a>195.39.35.48</a><a>128.242.106.66 </a><a>209.17
> 1.43.54</a></m></out></ep>"
>
># host -t TXT _ep.databrokers.net
> _ep.databrokers.net text "<ep
> xmlns='http://ms.net/1'><out><m><mx/></m></out></ep>"
>
>
> --On Thursday, February 03, 2005 22:19 +0100 lebobo <lebobo<_at_>hotmail.com>
> wrote:
>
>>
>> Iassen Hristov wrote on Wed, 02 February 2005 23:49
>>> You have to publish a TXT record in your DNS. See
>>> <http://www.kerio.com/callerid/>
>>
>>
>> I visit this web page but I don't find any information how to publish
>> this TXT record... could you help me ?
>>
>>
>
>
>
>





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