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From "Stefano Bagnara (JIRA)" <server-...@james.apache.org>
Subject [jira] Commented: (JAMES-358) Too many RemoteDelivery attempts with many mx and many ip
Date Fri, 03 Jun 2005 17:58:53 GMT
    [ http://issues.apache.org/jira/browse/JAMES-358?page=comments#action_12312534 ] 

Stefano Bagnara commented on JAMES-358:

I added a patch to DNSServer that allow a new configuration:
<singleIPperMX> true </singleIPperMX>
so that james will try a single IP for each multihomed MX host instead of trying them all
(relaxed RFC interpretation, IMHO more compliant with the multihome purpose).

> Too many RemoteDelivery attempts with many mx and many ip
> ---------------------------------------------------------
>          Key: JAMES-358
>          URL: http://issues.apache.org/jira/browse/JAMES-358
>      Project: James
>         Type: Bug
>   Components: Remote Delivery
>     Versions: 2.2.0
>     Reporter: Stefano Bagnara
>     Priority: Minor
>  Attachments: DNSServer.java.singleIPperMX.diff, james-config.xml.singleIPperMX.diff
> Take a domain with 5 mx servers each one with 6 associated ips. James currently try to
connect to each MX server even if the first server say "5.1.1 user unknown", but even worst,
james try to connect to each IP of each MX server.
> I think that james should only check each MX server once, at a random IP address from
the IP list for that mx hostname.
> The permanent user error issue would be only a further optimization but the IP issue
is probably against the RFC specifications.

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