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Re: [apps-discuss] Comments on draft-ietf-appsawg-greylisting-04

"Murray S. Kucherawy" <msk@cloudmark.com> Tue, 21 February 2012 21:12 UTC

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From: "Murray S. Kucherawy" <msk@cloudmark.com>
To: "apps-discuss@ietf.org" <apps-discuss@ietf.org>
Date: Tue, 21 Feb 2012 13:12:50 -0800
Thread-Topic: [apps-discuss] Comments on draft-ietf-appsawg-greylisting-04
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Subject: Re: [apps-discuss] Comments on draft-ietf-appsawg-greylisting-04
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> -----Original Message-----
> From: John Levine [mailto:johnl@taugh.com]
> Sent: Tuesday, February 21, 2012 11:53 AM
> To: apps-discuss@ietf.org
> Cc: Murray S. Kucherawy
> Subject: Re: [apps-discuss] Comments on draft-ietf-appsawg-greylisting-04
> 
> The only sources that need to be configured manually are ones that
> either don't retry in a way the greylister will recognize, or send so
> rarely that they'll age out of the exception list.  Any normal sender
> will enter the exception list the first time it retries, and never
> leave.

Added to the end of 2.6:

   Likely candidates to be excepted from greylisting include those known
   not to retry according to a pattern that will be observed as
   legitimate, and those that send so rarely that they will age out of
   the database.  In both cases the excepted source is known not to be
   an abusive one by the site implementing greylisting.  Otherwise,
   typical non-abusive senders will enter the exception list on the
   first proper retry, and remain there permanently.

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