Re: [exim] MX record lookup quest.

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Autor: Derrick MacPherson
Data:  
A: exim-users
Assumpte: Re: [exim] MX record lookup quest.
Perfect, works - thanks

On Mon, 2006-03-20 at 10:31 +0100, Phil Pennock wrote:
> On 2006-03-19 at 19:24 -0800, Derrick MacPherson wrote:
> > Hmm, gmail will send to them, so I guess they are doing only a IPv4 or
> > it's working with the v4 address and ignoring the ::1. Is there anything
> > I can do to get around it?
>
> Use ignore_target_hosts on your dnslookup Router. Put :: in that (and
> beware that : is the default list separator character, so use :::: or
> change the list separator).
>
> Exim doesn't match :: as meaning INADDR_ANY when doing an address
> comparison; you need to turn it into a net/masklen with ::/0 for that to
> happen.
>
> Example comparing joywong@??? and postmaster@??? (since
> kame.net has a valid IPv6 address in an MX record), where I locally
> have:
> hostlist bad_host_addresses = <; 0.0.0.0 ; 127.0.0.0/8 ; ::
> and the direct-to-MX router has:
> ignore_target_hosts = +bad_host_addresses
>
>
> dnslookup router called for joywong@???
> domain = intertrend.com
> DNS lookup of intertrend.com (MX) succeeded
> 67.111.18.5 in "<; 0.0.0.0 ; 127.0.0.0/8 ; ::"? no (end of list)
> 67.111.18.5 in "+bad_host_addresses"? no (end of list)
> :: in "<; 0.0.0.0 ; 127.0.0.0/8 ; ::"? yes (matched "::")
> :: in "+bad_host_addresses"? yes (matched "+bad_host_addresses")
> ignored host clsmail.com [::]
> fully qualified name = intertrend.com
> host_find_bydns yield = HOST_FOUND (2); returned hosts:
> clsmail.com 67.111.18.5 MX=10
> set transport remote_smtp
> queued for remote_smtp transport: local_part = joywong
> domain = intertrend.com
>
>
> dnslookup router called for postmaster@???
> domain = kame.net
> DNS lookup of kame.net (MX) succeeded
> 203.178.141.196 in "<; 0.0.0.0 ; 127.0.0.0/8 ; ::"? no (end of list)
> 203.178.141.196 in "+bad_host_addresses"? no (end of list)
> 2001:200:0:8002:210:f3ff:fe03:4d0 in "<; 0.0.0.0 ; 127.0.0.0/8 ; ::"? no (end of list)
> 2001:200:0:8002:210:f3ff:fe03:4d0 in "+bad_host_addresses"? no (end of list)
> fully qualified name = kame.net
> host_find_bydns yield = HOST_FOUND (2); returned hosts:
> sardine.kame.net 2001:200:0:8002:210:f3ff:fe03:4d0 MX=10
> sardine.kame.net 203.178.141.196 MX=10
> set transport remote_smtp
> queued for remote_smtp transport: local_part = postmaster
> domain = kame.net
>
>
> Regards,
> -Phil