> > If you behave as current netiquette recommends, and immediately
> > reject a message addressed to an unknown recipient: [a] your system
> > will never receive the header and body of the message, so you will
> > consume no resources processing them;

I received a reply which indicated that someone didn't understand that
message.  I will explain again, in very simple terms, and I'll CC this
to the list for the benefit of anyone else who didn't understand:

If you pretend to deliver misaddressed messages, instead of just
rejecting them, you are not hurting the spammers [1], you are only
hurting yourself [2] and your users [3].

========
[1] In fact you may even be helping spammers make money, if their pay
is based on the number of "250 after end of data" responses they receive.

[2] Accepting a message consumes *more* of your resources than rejecting
it would consume.  Even if you don't actually deliver or bounce it.

[3] Your system will mislead senders into believing undelivered messages
were delivered.  The sender will be angry at your user, because he will
think his message was delivered and ignored.  If they later find out
what really happened to the message, they will both be angry at you.





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