Re: [Hampshire] Virgin media: good and bad

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Author: Hugo Mills
Date:  
To: lug, Hampshire LUG Discussion List
Subject: Re: [Hampshire] Virgin media: good and bad

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gpg: failed to create temporary file '/var/lib/lurker/.#lk0x56df4100.hantslug.org.uk.2789': Permission denied
gpg: keyblock resource '/var/lib/lurker/pubring.gpg': Permission denied
gpg: Signature made Wed Jul 28 16:04:36 2010 BST
gpg: using DSA key 20ACB3BE515C238D
gpg: Can't check signature: No public key
On Wed, Jul 28, 2010 at 04:00:48PM +0100, Vic wrote:
> [At some point earlier, someone had the attribution removed from:]
> > My postfix mailserver has a 4 day timeout and a number of US and UK MSP's
> > are hitting this limit due to greylisting.
>
> I don't have the sort of problem you're describing, though - how are you
> getting 4-day timeouts through greylisting?


With large service providers (GMail, Yahoo!), the retries come from
different IP addresses, and so are treated as a new attempt by the
greylister. The best solution to that that I've seen so far is to
greylist on the basis of a /24 source, instead of a single IP (/32)
source, so a retry from anything that matches the first 3 octets of
the original source IP is accepted.

Hugo.

-- 
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
  PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
     --- "I don't like the look of it,  I tell you." "Well, stop ---     
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