relaying denied

[olga at urbantimes.net]

So for those entries (with higher and lower MX) in the DNS setup to work
correctly, I would need to configure /etc/mail/relay-domains and
/etc/mail/mailertable and setup mailboxes for the users on Y to allow mail
to be picked up by the lower priority MX in case something is wrong with
the primary MX, otherwise the lower priority entry of the MX record does
not do anything -- is this correct?

> Am Do, den 24.06.2004 schrieb olga at urbantimes.net um 21:20:
>
>> No, the way you explained the backup MX configuration I do not have it
>> configured that way.
>> But I did NOT say in the beginning that one of the servers was a backup
>> server. This point came up only later and I guess X is not actually a
>> backup.
>
> Ok, then it got a wrong direction. Maybe a result too by your DNS
> settings, where you have 2 MX entries with different priorities.
>
>> The point of my question was that if I have two separate severs X and Y,
>> some of the domains that where on X before rebuilt are now on Y, so why
>> is
>> X getting the 'relaying denied' messages for those domains that are now
>> on
>> Y and should be handled by Y MX? I believe this is a rephrase of my
>> original question which has been answered by you.
>
> Taking you did not fault: then either you changed something in the DNS
> and not all other in the world have current but cached and wrong DNS
> information, or as I suspected before you see SPAMmers at work trying
> the second MX host directly.
>
> What still confuses me and makes me thinking you made something wrong is
> what you wrote in your initial mail about this topic:
>
> I have checked the zone information for each of the domains on Y and
> they have MX records listed correctly -- mail should first go to Y, then
> to X.
>              MX   10 Y.ns1.com
>              MX   15 X.ns2.com
>
> If you have 2 different mail servers each for it's own set of domains,
> then these DNS entries are wrong! and must lead to errors. It would
> explain some errors you see in your maillog.
>
> Alexander
>
>
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