Re: exim4 e il campo MX dns

http://exchangepedia.com/blog/2006/11/rfc-2821-and-implicit-mx-rule-can-you.html


On 23 August 2014 00:12, vanni <[email protected]> wrote:

>
> Il 22/08/2014 23:59, Davide D'Amico ha scritto:
>
>  Q0311:  When a DNS lookup for MX records fails to complete, why doesn't
>> Exim send the messsage to the host defined by the A record?
>>
>> A0311:  The RFCs are quite clear on this. Only if it is known that there
>> are no MX records is an MTA allowed to make use of the A record. When an MX
>> lookup fails to complete, Exim does not know whether there are any MX
>> records or not. There seem to be some name servers (or some configurations
>> of some name servers) that give a “server fail” error when asked for a
>> non-existent MX record. Exim uses standard resolver calls, which
>> unfortunately do not distinguish between this case and a timeout, so all
>> Exim can do is try again later.
>>
>
>
> Ti ringrazio, risposta a tempo di record e molto esaustiva.
> A quale RFC si riferisce ?
> Dove posso trovare l'intero file delle FAQ ?
>
> Grazie molto gentile.
>
> Giovanni
>
>
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-- 
d.

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