Russell Nelson writes:

> Anand Buddhdev writes:
>  > On Tue, Mar 30, 1999 at 10:34:25AM +0300, Georgi Kupenov wrote:
>  > 
>  > To ban a certain host from connecting to you, put the following at the
>  > top of the tcp.smtp rules file and rebuild it with tcprules:
>  > 
>  > [ip.address.of.bad.host]:deny
> 
> That causes problems, though.  Microsoft, in their infinite wisdom (we
> wouldn't have Melissa without Microsoft products to propogate it --
> Unix-only houses have been blissfully ignorant) causes some version of
> their mailer to retry upon failure to get a prompt.  Denial of service
> attacker, as designed.  By a major US corporation.

No problem.  Router firewall.

-- 
Sam

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