Returned mail: Host unknown (Name server: mars.zoner.com.: host not found)

[Mail Delivery Subsystem]

The original message was received at Wed, 11 Nov 1998 06:30:39 +0100 (MET)
from diana.mobil.cz [194.213.194.6]

   ----- The following addresses had permanent fatal errors -----
<supka@sgp-systems.com>

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550 <supka@sgp-systems.com>... Host unknown (Name server: mars.zoner.com.: host not found)
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