Multiple CNAMEs - howto?

Hans nobody at
Sat Oct 28 14:21:42 UTC 2006

> Incoming messages is not a problem - they *should* come to uk1
> primarily, and only to uk2 or 3 if the previous are unavailable.
> For that I have the setup:
>    IN MX 10 uk1
>    IN MX 20 uk2
>    IN MX 30 uk3
> It's for outgoing messages so users can either connect to
> (which will in effect be a round-robin for
> all 3 servers), or directly to uk1, 2 or 3.
> I believe mail clients use the A records for SMTP?

Not all depending on the definiton of  "mail clients".
For Postfix and Sendmail I am sure that the use MX before A on outbound 
But if we are talking over products like OE I can not say that.

I found this (old) discusion .
But I only can say check it.
So check your query logfile.
Even if you would have mutiple A records you should alway's see MX lookup 
request for that RR.

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