MX problem: loopback

[Rainer Collet]

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