RE: OT: Why Friends Don't Let Friends use RBLs
- From: "Dan Bartley" <dan@xxxxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Wed, 2 Jun 2004 20:31:12 -0400
I've tested a few anti-spam solutions. The ones that let me and my test
subjects have the greatest degree of choice are the ones I like best.
Currently I am testing the new MS IMF. On my home network with my personal
domain that I paid a little more than 15 for (there are very few blanket
statements that are accurate).
It is nice so far. It certainly does not have the huge array of bells and
whistles that some commercial products have, but it is doing a pretty good
job and it is free. The nice thing is that if I don't want it to, not a
single inbound email gets thrown away. I archive the higher rated ones for
now and examine them to see how it is handling different types of email. The
lower rated go to the user's junk folder, where they can decide how it should
be handled. This is how I will roll it out at my real network (the one I get
paid for). I will likely set the gateway piece to reject when I am ready on
the test bed, but No Action at the work site and let the Junk folder handle
it.
RBLs have never done a very good job at preventing spam for me. I've tried
over a dozen systems and at most they blocked maybe 10-20% of the spam. Plus
I am a control freak (like many of the people I serve at the real network)
and do not like the idea that someone else is determining what I see or not.
At the test bed, ISA for security and access control, E2k3 and IMF for spam
control and my favorite anti-virus for all the rest. At the real network, PIX
first, then ISA, then E2k3, then anti-virus, with gateway anti-virus for
email and network borne attacks (testing the McAfee beta for ISA right now,
works well so far-single gateway for anti-virus, http filter and access
control with that solution).
Dan Bartley
-----Original Message-----
From: Anthony Michaud [mailto:anthonym@xxxxxxxxxxxxxx]
Sent: Wednesday, June 02, 2004 20:11
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: OT: Why Friends Don't Let Friends use RBLs
http://www.ISAserver.org
> -----Original Message-----
> From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx]
> Sent: Wednesday, 2 June 2004 11:22
> To: [ISAserver.org Discussion List]
> Subject: [isalist] OT: Why Friends Don't Let Friends use RBLs
> ~~~~~~~~~~~ Clip from Fred Langa Newsletter ~~~~~~~~~~~~~~
> Kennedy Space Center Blacklisted
> I won't bore you with the rationale of why broad-brush
> "blacklist" tools
> are bogus--- I've covered the inherent flaws in this approach
> many times
> before. ( http://langa.com/u/4v.htm ) But I admit to a
> perverse pleasure
> in emails like this, which show just how utterly stupid SPEWS, MAPS,
> SpamCop and the rest really are:
>
> Three times this year all of the e-mail from Kennedy Space Center was
> blocked by our county's largest broadband ISP (RoadRunner). They have
> done so because of a large quantity of mail coming from a single user
> or because one or more of the following third party spam
*snippage*
I love these rants. Who I accept email from is *my* choice, based on the
lattitude that I have been given in my role. If your company has sent
unsolicited emails, I don't want 'em. If your ISP has done it, or a customer
of the ISP's - the ISP needs to be contacted by you and the ISP fix it. I
use dynamic RBL's, that have a quick turnaround on removal of blocks, so when
your mail system is secure again, then you can talk to me. Don't fix it,
then get on the phone or fax.
Its *my* mailserver. Its *my* bandwidth. Its not free and the spammers /
virus writers aren't paying for the bandwidth they waste.
I just love those that think they have a god given right to send email -
which is not the case.
Anthony.
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