Reporting-MTA: dns; smtp.kimittud.hu
X-Postfix-Queue-ID: 88CA63FCAC
X-Postfix-Sender: rfc822; xxxxxxxxxxxxxxxxxxxxxxxxxx@xxxxxxxx.xx
Arrival-Date: Wed, 15 Apr 2026 23:46:28 +0000 (UTC)

Final-Recipient: rfc822; xxx@xxxx.xx
Original-Recipient: rfc822;xxx@xxxx.xx
Action: failed
Status: 5.7.1
Remote-MTA: dns; mail5.kibernet.hu
Diagnostic-Code: smtp; 550 5.7.1 <xxx@xxxx.xx>... Relaying denied. Proper
    authentication required.