Re: [exim] Potential logic error in retry handling for IPv4+…

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Author: Marc Haber
Date:  
To: exim-users
Subject: Re: [exim] Potential logic error in retry handling for IPv4+IPv6 hosts
On Sat, 17 Dec 2005 10:56:48 -0500, Marc Sherman
<msherman@???> wrote:
>What's the fix for this? Have exim always explicitly query DNS for A if
>the additional section only returns AAAA (or vice versa)? Or should the
>additional section not be trusted at all?


I think that if none of the hosts listed in the additional section is
reachable, exim should explicitly query for AAAA and A to make sure to
catch even the hosts that are not listed in the additional section.

This is, btw, not an ipv6 issue exclusively, it might happen in
ipv4-only setups as well. See Debian Bug #342619 for another example.

Greetings
Marc

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