Delivery time expiration

[Tony Nelson]

At 3:29 PM -0500 2/13/06, Scot L. Harris wrote:
>On Mon, 2006-02-13 at 15:14 -0500, Tony Nelson wrote:
>
>> I wonder if greylisting pays any attention to MX records?  (I just don't
>> wonder enough to look for myself.)
>
>None of the greylisting implementations I am aware of looks at MX
>records.

OK.

 ...
>Greylisting still works wonders since the bulk of the spam still appears
>to come from non-compliant zombie hosts which just spray email and don't
>bother to check any of the return codes.
 ...

Early-talker checks can catch those without ever sending any SMTP stuff to
them.  The presence of a second input line in the buffer before the first
response shows early talking.
____________________________________________________________________
TonyN.:'                       <mailto:tonynelson at georgeanelson.com>
      '                              <http://www.georgeanelson.com/>