[Dshield] Whom do you trust?

Ed Truitt ed.truitt at etee2k.net
Thu Mar 6 20:03:51 GMT 2003

I may not have been clear enough in my previous post.  The comment was not
aimed at this particular DNSBL, but at DNSBLs in general - especially OPEN
ones.  While you and I and many others may use them for their intended
purposes, what is to keep a spammer from searching a BL - for example,
ordb.org - for open relays that can be abused?  And, since anyone can set up
a DNSBL, it is entirely possible that a spammer or spam-enabler could set up
a DNSBL, go through the scanning process, then allow spammers / spamware
access to the zone to select relays to pump their spam runs through.

Personally, I don't have a problem with my SMTP server being checked out by
the DNSBLs - I keep it locked down tight, and if they find anything then I
surely want to know about it.  And, I don't have any problems with the BL
mentioned in this thread.  However, I don't think it is impossible that
these BLs could be used by spammers.

Ed Truitt
PGP fingerprint:  5368 D25E 468C A250 9833  CCD6 DBAE 9C25 02F9 0AB9

"Note to spammers:  my 'delete' key is connected to YOUR ISP.
 Also, if you send me UCE, I reserve the right to post your spew
on my Web site, with the appropriate color commentary, so that
others may have a good laugh at your expense."

----- Original Message -----
From: "Hanke Penning" <hanke.penning at iap.de>
To: "General DShield Discussion List" <list at dshield.org>
Sent: Thursday, March 06, 2003 11:10 AM
Subject: Re: [Dshield] Whom do you trust?

> Am 6 Mar 2003 schrieb Ed Truitt zum Thema Re: [Dshield] Whom do you
> trust?:
> Hello,
> > We
> > PRESUME that the DNSBL will be used to BLOCK mail, but what if it is
used to
> > IDENTIFY abusable systems...
> True, but:
> spamcop.net rely on them. And spamcop.net has a valueable reputation.
> Greets Hanke Penning
> _______________________________________________
> list mailing list
> list at dshield.org
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