[29974] in North American Network Operators' Group
Re: RBL-type BGP service for known rogue networks?
daemon@ATHENA.MIT.EDU (Brett Frankenberger)
Tue Jul 11 07:53:57 2000
Message-ID: <098a01bfeb2e$3c46d040$a34784a7@isdn.omhq.uprr.com>
From: "Brett Frankenberger" <rbf@rbfnet.com>
To: "Scott McGrath" <s_mcgrath@bexair.com>
Cc: <nanog@merit.edu>
Date: Tue, 11 Jul 2000 06:50:10 -0500
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----- Original Message -----
From: Scott McGrath <s_mcgrath@bexair.com>
>
> The biggest problem with ORBS is the ASSUMPTION that we are all
running
> sendmail. MANY corporate sites use SMTP gateways which do not exhibit
> the same behavior as sendmail for instance Notes 5.0.x will accept a
UCE
> message and quietly drop it once it realizes that this is a UCE
message
> if the UCE filters are enabled. This behavior will get you on the
ORBS
> list and until Lotus creates a Notes/Domino gateway which fully
emulates
> sendmail you cannot get off the ORBS list.
I am not an ORBS fan. However, in the interest of factual accuracy, I
have not noticed this to be true (and there are Notes SMTP gateways on
the network I run). Thre are some obscure relay syntaxes that can cause
Notes to relay even if you have relaying disabled. If you don't take
steps to eliminate those, ORBS will consider you a relay. But if you
configure it to block all relaying, you will not get on ORBS, even
though the Notes SMTP gateway will gladly accept a relay message, and
then drop it later.
You don't get on the ORBS relay list unless and until the test message
actually gets relayed.
-- Brett
