Quoting Toralf Lund <toralf@???>:
> It does, however, seem a bit drastic to plainly reject all messages
> that can't be verified.
There are, I would say, two schools of thought on that:
The first is an Internet classic: "Be liberal in what you accept, and
conservative in what you generate". Fair advice, I suppose, except that in
our spam-laden network, where many spammers are trying their damnedest to
obscure their trail, it doesn't really work.
Given the existence of clear, readable standards, of dozens of books on the
subject of configuring one's system to behave well on the Internet, and of
hundreds if not thousands of individuals with clues willing to help the
clueless...there is simply no good reason why Exim's sender verification
should ever fail for a truly legitimate address.
"But what if someone makes a mistake?" I hear you wondering. A legitimate
question. One of my colleagues actually had this happen to him shortly after
I switched our main server over to Exim4. Mail he was sending to us kept
bouncing because his relay host had a misconfigured DNS.
My answer is: if you don't generate errors when people misconfigure their
systems, the systems never, ever get fixed.
--
Michael Scott Shappe <mikey@???>
Addicting the Unsuspecting to the Internet since 1987
Visit Radio Free Tomorrow at <
http://www.radiofreetomorrow.org/>
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