Would it help for everyone ( meaning us and all isp's etc.) to "convince
them that this is the best way to go... couldn't hurt...

Sheldon
----- Original Message ----- 
From: "Len Conrad" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, July 18, 2003 2:41 AM
Subject: [IMGate] Re: AOL blocking IMGate after too many SAV probes


>
>
> >If AOL implements this properly, it could be a very good encouragement
for
> >ISPs to take responsibility for their DNS!  That would make heavy handed
> >DNS checks more accurate!
>
> AOL requiring PTR to accept mail would be wonderful.  Since all legit MTAs
> would have to do it, so rejecting no-PTR MTAs would make them
> illegit.  Pray for it.
>
> The other block they are implementing is all "dynamic" networks.  AOL
looks
> these up in some registry where ISPs list their dynamic networks, such as
> dial-up nets, DSL nets, cable networks.  This is very similar to my idea
of
> of mta_clients_subscriber.regexp  (access subscriber, ie, the same three
> type of networks AOL would be blocking) that blocks based on PTR domains.
>
> Len
>
>
>


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