Case in point. We have several large customers that run exchange server
over a dial-up line for connectivity. They connect to the internet and
dequeue from us using ETRN and send out messages DIRECTLY FROM THEIR
*CLOSED SMTP* SERVER while they are connected. This complies 100% with
all RFC's, it's a very common way to exchange messages for bigger
companies (as opposed to POP3). For privacy issues some companies don't
want the messages relaying through us.
Now is it fair that if the Dial-up block they're on gets listed with
MAPS? Is Mail-abuse.org now actually blocking closed relays? Yes.
Legitimate EMails getting trashed. What will mail-abuse.org say? "Get
a dedicated connection/ip address that is seperate from the dial-in
pools if you want to use ETRN". None of their business how, why, when
or where a company connects to the internet. They are supposed to check
for open-relays.
SPAM is here to stay. People can order a DSL line and change their IP
address every week if they want and keep flooding the net with crap. An
EFFECTIVE filtering system will remove 96% of the junk. The rest? Deal
with it because it's here to stay.
-Mark McDonald
Siteserver Account Executive
EMail: [EMAIL PROTECTED]
Voice: 800.610.9856 Ext 231
Cell: 805.857.5614
Fax: 888.333.2710
-----Original Message-----
From: R. Scott Perry [mailto:[EMAIL PROTECTED]]
Sent: Saturday, June 02, 2001 11:40 AM
To: [EMAIL PROTECTED]
Subject: Re: [IMail Forum] ORBS
>You should not allow rogue, (self appointed) Internet Police to make
>decisions about who you filter from your network.
A couple things to remember:
[1] You don't have to block E-mail to use these services. For example,
you
could add a warning to the beginning of E-mail coming from open relays
("[This mail came from an open relay and could be spam]"), which would
end
up helping get the open relay closed (reducing spam for everyone), while
guaranteeing that legitimate mail comes through.
[2] Different filtering services have varying levels of "rogueness".
For
example, I've never heard of a non-dialup-line being added to the DUL
service. In that case, assuming nothing changes, you could use the DUL
database without having to worry about any rogue self-appointed Internet
police. If you agree with the reason for the entries being in there,
you
can use it; if you don't, you don't.
>You should police your own network.
And people do that by having closed relays, and using software to help
prevent their own users from spamming.
But, ORBS/RSS/RBL/DUL/etc. are used mostly for incoming E-mail. That's
protecting your users from unwanted E-mail (time and expense), and the
spam
server databases can help with that. Whether or not they are effective
is
highly debateable (so let's not), but making a decision to use them is a
decision involved in policing your own network (as far as incoming stuff
goes).
>Organizations like ORBS allow network admins to become lazy and
>unaware of what's really happening on their networks.
How so? It actually prevents network admins from becoming lazy and
being
unaware, as it helps close open relays.
-Scott
Declude: Anti-spam and Anti-virus solutions for IMail.
http://www.declude.com
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