Re: filter by mailserver

Hi,

is that not already covered by any SPF checks? Given that you have 
defined a SP for your domain, SpamAssassin should already be taking care 
of this. Have you enabled SpamAssassin's SPF checks? If you are not 
using SA, I believe I have seen a SPF script for TMDA somewhere in the 
wiki or you could look for a stand-alone SPF checker.

Best regards,
Arik


Julie S. Lin wrote:
> Hi
> 
> what yer saying is absolutely correct, hence my desire to filter by 
> specifying a mail server
> is this possible?  i'm hopping spammers can't easily forge outgoing 
> server identity
> 
> David Hoffman wrote:
> 
>> If what you mean is that spam is getting through because the spammer 
>> forges an address that is on your whitelist, then the simple answer is 
>> don't put that address in your whitelist.
>>  
>> If you put your own address into your whitelist, or your own domain, 
>> then any spammer can forge it, and it will go through.
>>  
>> See: 
>> http://wiki.tmda.net/TmdaFaq#head-e81137818ea55d7e15d5822687715793af7062ea
>>
>>
>>  
>> ----- Original Message ----
>> From: Julie S. Lin <[email protected]>
>> To: [email protected]
>> Sent: Monday, December 4, 2006 1:14:12 PM
>> Subject: filter by mailserver
>>
>> Hi
>>
>> is there a way to filter by originating mailserver?
>>
>> the rule "from *@=domain.dom ok" still allows spam clever enough to
>> forge the from field.
>>
>> i'd like to write the filter such that mail originating from
>> "[email protected]" is OK.
>>
>> or have spammers figured out how to forge originating mail server
>> identity too?
>>
>> J
>>
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> 
>