Milter-greylist

Bob Smith wrote:
> manu@... wrote:
>>
>> Bob Smith <bsmith@... <mailto:bsmith%40sudleyplace.com>> wrote:
>>
>>  > Sorry, but I must be really thick. How is that Sendmail does a lookup
>>  > on the DNS entry for (say) foo.dynip.com when that text never appears in
>>  > the email?
>>
>> sendmail perform a DNS lookup on the IP address of the incoming SMTP
>> connexion (a la getpeername(3)).
> 
> That's fine.  But I asked who does a DNS lookup on the IP address of 
> foo.dynip.com so it can be compared to the IP address of the incoming 
> SMTP connection?
> 

Nobody.