Reporting-MTA: dns; mailhost.nyf.hu
X-Postfix-Queue-ID: 807A212E003
X-Postfix-Sender: rfc822; xxxxxxxxxxxxxxxxxxxxxxxxxx@xxxxxxxx.xxx
Arrival-Date: Tue,  9 Apr 2019 18:56:30 +0200 (CEST)

Final-Recipient: rfc822; xxxxxxx@xxx.xx
Original-Recipient: rfc822;xxxxxx@xxx.xx
Action: failed
Status: 5.1.1
Diagnostic-Code: X-Postfix; unknown user: "ondercs"