Can you point out an RFC that says mail servers must accept from DULs?
I know that the user agreement on my home broadband connection with
Comcast does say that it's a residential service and isn't to be used
for running webservers and the like.  Granted they don't go looking, but
I'm sure they'd notice if the traffic stats made them look in that
direction.  So they could be breaking their agreement with their ISP.

Regardless, this is the same old arguments.  There isn't anything that
says you have to use the RBLS.  If it's giving you FPs or you don't like
it then turn it off in SA by setting the score.


-----Original Message-----
From: Shane Williams [mailto:[EMAIL PROTECTED] 
Sent: Thursday, February 05, 2004 11:06 AM
To: Rose, Bobby
Cc: Jens Benecke; [EMAIL PROTECTED]
Subject: RE: Lost of FPs because of IPs listed in DUL + "open Proxy"

On Thu, 5 Feb 2004, Rose, Bobby wrote:

> Users shouldn't be running their own smpt server on a DUL.  That's why

> they are listed.  If they used their ISP's smtp host like they are 
> supposed then it would be an issue.  Users on DULs shouldn't even run 
> their own smtp server since they can't even keep their systems patched

> and maintain sufficient virus defs.

Hmm...  Can you point to an RFC that states all these shoulds and
shouldn'ts?  I would suspect that the greater problem on dynamic IPs is
not users who are running their own servers, but users who get infected
with some form of malware that then starts spewing spam and/or viruses
out to the rest of the world.

Because of this (and yes, also the occasional dumb-ass who doesn't lock
their mail server down), some list-keepers have decided it's more
effective to just block all of them indiscriminately, tossing out the
baby with the bathwater.  That's certainly their prerogative, but don't
make it sound like people running their own mail servers and bypassing
their ISP's are somehow breaking the rules.

-- 
Public key #7BBC68D9 at            |                 Shane Williams
http://pgp.mit.edu/                |      System Admin - UT iSchool
=----------------------------------+-------------------------------
All syllogisms contain three lines |              [EMAIL PROTECTED]
Therefore this is not a syllogism  | www.ischool.utexas.edu/~shanew



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