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[cobalt-users] Cute Sendmail Reply



Checking to make sure my RaQ would reject spam from postageshop.com I
accidentally typed !postageshop.com in the test:

> HELO !postageshop.com
501 Invalid domain name
> VRFY me@xxxxxxxxxxxx
252 Cannot VRFY user; try RCPT to attempt delivery (or try finger)
> MAIL FROM: <sales@!postageshop.com>
503 Polite people say HELO first

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Dan Kriwitsky