MX error with Sendmail

[phriek]

The following error i get, when i want to send the mails:

Jul 7 19:30:05 sxxxxx sendmail[6896]: 1a85Tc94900000003: SYSERR(root): news.domain.de. config error: mail loops back to me (MX problem?
Jul 7 19:30:05 sxxxxxx sendmail[6896]: 1a85Tc94900000003: to=<mail@reciever.de>, delay=00:00:49, xdelay=00:00:00, mailer=esmtp, pri=0, relay=news.domain.de. [87.xxx.xxx.xxx], dsn=5.3.5, stat=Local configuration error

at united domains i only can set two diffrent MX entries with priority 10 (for mail.domain.de) and with priority 20 (for news.domain.de and openEMM).
Have i set up something at suse?

thx,
phriek