Author: Florian Weimer Date: To: Jeroen van Wolffelaar CC: exim-users Subject: Re: [exim] Potential logic error in retry handling for IPv4+IPv6 hosts
* Jeroen van Wolffelaar:
> On Sat, Dec 17, 2005 at 05:21:20PM +0100, Florian Weimer wrote:
>> * Marc Sherman:
>> > Or should the additional section not be trusted at all?
>>
>> This is probably the safest approach, and it's also necessary to
>> comply with the letter of the SMTP RFC. The resolver can drop as many
>> data as it wishes from the additional section.
>>
>> It would increase the number of DNS queries by quite a bit, though.
>
> Not so much if first all of the additional section is tried, and extra
> queries only been done of all of those fail
This would require a significant change in how Exim handles routing
(part of the routing would run after the a delivery attempt has been
performed). I doubt it's worth the complexity.
