[spambayes-dev] Re: Generating SB tokens based upon information on the net

[Brad Knowles]

At 9:30 AM -0700 2004-08-04, T. Alexander Popiel wrote:

>  Actually, the Received header info can come from the HELO or EHLO command
>  that opened the conversation, not DNS.

	Depends on the MTA configuration.  I believe that all current 
versions of major MTAs will currently put both claimed EHLO/HELO 
information into the "Received:" headers, as well as what comes from 
reverse DNS -- by default.

>>	Indeed, all MTAs I know of are toast if DNS ever goes down, at
>>least in their default configurations.
>
>  Outbound, certainly... but not for inbound.

	For both inbound and outbound, by default.

-- 
Brad Knowles, <brad.knowles at skynet.be>

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."

     -- Benjamin Franklin (1706-1790), reply of the Pennsylvania
     Assembly to the Governor, November 11, 1755

   SAGE member since 1995.  See <http://www.sage.org/> for more info.