[Dnsmasq-discuss] [OT] A question about MX records

Chris Green cl at isbd.net
Mon Feb 20 08:49:32 GMT 2017

On Sun, Feb 19, 2017 at 09:25:01PM -0600, richardvoigt at gmail.com wrote:
>    If by "alias", you mean a second A record for, then the
>    common practice is to use a hostname of mail.domain.tld

Yes, this is what I intended to mean. My question is whether it's
necessary to do this so that the MX record points at mail.zbmc.eu or
is my existing setup where it simply points at the 'root' A record OK? 

>    If by "alias", you mean a CNAME, you should know that listing a CNAME
>    in an MX record violates the RFC.  It often works, but some servers
>    check for this and reject all mail originating from a domain whose MX
>    is misconfigured.
>    On Sun, Feb 19, 2017 at 3:26 PM, Chris Green <[1]cl at isbd.net> wrote:
>      I'm afraid this is a little off topic for dnsmasq but I don't know
>      where else I could ask.
>      If I have a small server that is both a basic internet host *and*
>      the
>      mail server for that host how does one set up the MX record in the
>      zone file?
>      I.e. I have a server for the domain [2]zbmc.eu and 'host [3]zbmc.eu'
>      returns
>      the following:-
>          chris at cheddar$ host [4]zbmc.eu
>          [5]zbmc.eu has address
>          [6]zbmc.eu mail is handled by 10 [7]zbmc.eu.
>          chris at cheddar$
>      Is this correct or should there be an alias so the mail server has a
>      different name?
>      --
>      Chris Green
>      _______________________________________________
>      Dnsmasq-discuss mailing list
>      [8]Dnsmasq-discuss at lists.thekelleys.org.uk
>      [9]http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
> References
>    1. mailto:cl at isbd.net
>    2. http://zbmc.eu/
>    3. http://zbmc.eu/
>    4. http://zbmc.eu/
>    5. http://zbmc.eu/
>    6. http://zbmc.eu/
>    7. http://zbmc.eu/
>    8. mailto:Dnsmasq-discuss at lists.thekelleys.org.uk
>    9. http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss

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Chris Green

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