Re: [Asrg] filtering at connect time

["David F. Skoll" <dfs@roaringpenguin.com>]

On Tue, 4 Mar 2003, wayne wrote:

> Spammers don't care about undelivered spam.  Most of the time, they
> won't even know because they use open proxies, forged from addresses
> and forged reply-to addresses.

However, there is a benefit to replying to spam with a 554 SMTP code.
If the spammers have been using an open relay, the open relay will generate
a bounce message that typically bounces, causing mail to go to
postmaster@open-relay.  This provides some incentive to close open relays.

--
David.
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