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Re: Fw: Administrivia: ORBS

  • From: danielle v.
  • Date: Sat Jan 15 00:08:42 2000

On 14 Jan 2000, Paul Vixie wrote:

> Date: 14 Jan 2000 18:41:48 -0800
> From: Paul Vixie <>
> To:
> Subject: Re: Fw: Administrivia: ORBS
> That's a misleading question.  MAPS RSS doesn't probe for relay openness
> unless spam has been received from the relay in question.  OTOH, if there
> is spam receipt and if the relay doesn't appear to be reachable, a human
> operator can decide that a firewall might be involved and block the relay
> in spite of our inability to test it.
> MAPS RSS never blocks whole address ranges, only /32's.
> ORBS is apparently blocking whole /16's belonging to Abovenet only because
> Abovenet refuses to have whole /16's probed for SMTP servers and then having
> each such server probed for relay openness.  (I can't say as I blame them.)
> -- 
> Paul Vixie <>

In effect, is (by filtering the ORBS probes) licensing every single IP
in their /16 to spam via the sordid and detailed means that ORBS works to

This is an incorrect assumption? Please educate me as to how this is the 
wrong way to view this.

I am under the assumption that the said block on didn't go into 
effect until ORBS itself was blocked - thus the resulting block on

danielle v

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