MX problem: loopback

mwhitset at phybertek.com mwhitset at phybertek.com
Sat Apr 29 04:38:38 UTC 2000


Don't point your MX line to a CNAME...

-Mark Whitsett


Rainer Collet wrote:

> Hi,
>
> I am very new to DNS, so please can you help me with the following problem?
> Nameserver and mailserver runs on the same host. I have written this
> zonefile:
> --snip
> $ORIGIN xxx.com.
>
> @   1D IN SOA @ nsmaster.xxx.com (
>      2000042800 ; serial
>      3H  ; refresh
>      15M  ; retry
>      1W  ; expire
>      1D )  ; minimum
>
>    1D IN NS ns1.xxx.com.
>    1D IN NS ns2.xxx.com.
>    1D IN A  195.4.253.14
>    1D IN MX 1 baby
>
> baby   1D IN A  195.4.253.14
>
> ns1   1D IN CNAME baby
> ns2   1D IN CNAME baby
> mail   1D IN CNAME baby
> ftp   1D IN CNAME baby
> www   1D IN CNAME baby
> news   1D IN CNAME baby
> --snip
>
> and I allways get back this errormessage:
>
> 554 MX list fo xxx.com. points back to baby.xxx.com
> 553 xxx.xom. config error: mail loops back to me (MX problem?)
> 554 <user at xxx.com>... Local configuration error
>
> how can I solve this problem?
>
> Thank you very much,
>
> Rainer

--
[Mark A. Whitsett]
[Workin Woman Network]
[Senior System Administrator]
[135 West 50th Street, NY,NY 10020]
[Work: (212) 909-2703 Fax: (212) 909-2703]






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