[OT but please read] ORBS blacklisting ns1.samba.org
peter at cadcamlab.org
Tue Aug 22 02:49:05 GMT 2000
[David Ford <david at kalifornia.com>]
> Some lists and emails are distributed via ns1.samba.org. For those
> of you that use ORBS, you'll find it is blacklisted now. There is no
> mention of it on the website and it doesn't return a positive when
> you enter it for testing but it has slipped into the ORBS blacklist
Check your facts. ns1 isn't in "the ORBS blacklist" -- it's listed in
a different category. If you as a mail admin confuse the two it's not
ORBS's fault. From their web site:
Spam source and haven netblocks also get listed if our attention is
repeatedly drawn to them - the easiest way to do this is for those
netblocks to start filling ORBS spamtraps. These return a 127.0.0.5
A RR code.
ns1 is in this category. Thus it does NOT mean that ns1 is an open
relay -- it means that their upstream contains spamhausen.
So, all you mail admins out there -- check your setups! If you only
want to reject known open relays, set your MTAs to only look for ORBS
responses of 127.0.0.2 and 127.0.0.3. 127.0.0.4 and 127.0.0.5 mean
*other things*. If you don't wish to block those other things,
*don't*. It's a flexible system, and I wish people would stop blaming
ORBS for random mail admin mistakes.
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