-----Original Message-----
From: asrg-admin(_at_)ietf(_dot_)org
[mailto:asrg-admin(_at_)ietf(_dot_)org]On Behalf Of
Vernon Schryver
Sent: Monday, March 10, 2003 10:05 AM
To: Asrg(_at_)ietf(_dot_)org
Subject: Re: [Asrg] Lets Fix Mailing Lists
Other spammers know that their target lists tend to fill with garbage
as addresses are abandoned and as target address harvesting mechanisms
get confused (e.g. by message-IDs). They know that some major ISPs
by rumor including AOL automatically blacklist STMP clients by IP
address after too many bad target addresses. This provides a strong
incentive for spammers to clean their target lists. To do that, they
need drop-boxes get delivery failure notifications.
This seems to argue that there should be no feedback to spammer to
allow them easy means to clean their lists, since bad RcptTo may
trigger spammer detection.
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