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From "Stefano Bagnara (JIRA)" <server-...@james.apache.org>
Subject [jira] Commented: (JAMES-796) Do also query authoritative nameservers to obtain MX record
Date Thu, 12 Jul 2007 13:26:12 GMT

    [ https://issues.apache.org/jira/browse/JAMES-796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12512087
] 

Stefano Bagnara commented on JAMES-796:
---------------------------------------

What I mean is that I'm not sure that such a patch would be correct and compliant.
I'm not sure that you should ask for NS records (for a given domain) to a server that already
sent you empty MX records (for the same domain).

Why don't you simply point JAMES Server to a recursive server?

In order to decide whether to apply or not modifications to our dns client we should collect
informations from a dns expert to tell us exactly who is wrong and what is the correct solution.

Maybe we use dnsjava the wrong way, maybe dnsjava is bugged or provide incomplete resolutions
(unlikely), maybe the server you are using is buggy. IMHO before working on any patch we have
to collect informations on the problem and the correct approach to the fix.

> Do also query authoritative nameservers to obtain MX record
> -----------------------------------------------------------
>
>                 Key: JAMES-796
>                 URL: https://issues.apache.org/jira/browse/JAMES-796
>             Project: James
>          Issue Type: Improvement
>            Reporter: Armin Häberling
>
> for example for zunft-oberstrass.ch
> DNSServer.lockup("zunft-oberstrass.ch", Type.MX, "MX")
> will return null, but
> DNSServer.lockup("zunft-oberstrass.ch", Type.NS, "NS")
> will return two authoritative nameservers, which then can be queried and return the MX
record for zunft-oberstrass.ch.

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