[H-GEN] Key Mapping Problem (I think)

[Greg Black]

On 2004-04-22, Rick Phillips wrote:

Note the header below, which was the very first Received header
put on this message:

> Received: from unknown (HELO ?192.168.2.244?) (192.168.2.244)
> 	by 192.168.2.185 with SMTP; 22 Apr 2004 05:28:50 -0000

This is a problem for several reasons.  For one thing, it's now
common for people to tag messages that have been processed by
hosts without proper DNS as spam (which I now do and which is
why this message was drawn to my attention).

This is another Received header from that message:

> Received: from hegwig.suntech.net.au ([203.63.166.202]
>         helo=localhost.localdomain)
>         by caliburn.humbug.org.au with smtp (Exim 3.35 #1 (Debian))
>         id 1BGWlX-0001jj-00
>         for <general at lists.humbug.org.au>; Thu, 22 Apr 2004 15:28:52 +1000

Note the second line, where the sending MTA, although it does
have a DNS entry as hegwig.suntech.net.au, chose to lie in its
SMTP HELO and called itself localhost.localdomain, which is both
absurd and wrong.  Lots of people now block stuff like that too,
as it's so common from spammers.

For your own sake, please consider setting your systems up
properly.

Just as a general note, I had previously white-listed the Humbug
lists so that my spam filters would not catch list posts, but
the list headers changed some time ago and so my white-list did
not protect this message.  (I've updated it now to respond to
stuff that *is* in the list headers, but the issue with broken
email setups is still relevant.)

Cheers, Greg
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