[Sqlgrey-users] Re: Greylist or sender verification?

[Lionel B. <li...@bo...>]

Lionel Bouton wrote the following on 10/07/04 10:41 :

>>
>> No, sender verification will connect to the DNS-listed MX of the 
>> domain part of the sender address -- which may be different from the 
>> "outgoing" mail server used to send from that domain[1] -- and 
>> attempt to verify if the sender address exists. Of course, some 
>> connecting MTAs don't keep a local_recipient_maps (or their MTA 
>> equivalent) on their MXes, so you'll get a positive sender 
>> verification every single time. So sender verification is also not 
>> the silver bullet.
>
>
>
> Note to self : toy with this in SQLgrey.


Should have searched for "sender verification" on postfix.org earlier... 
I'm not yet through the whole pile of posftix docs !