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Reporting-MTA: dns; kundenserver.matze-hosting.de X-Postfix-Queue-ID: 27694480107 X-Postfix-Sender: rfc822; admin@m-hosting.eu Arrival-Date: Mon, 14 Apr 2025 06:26:10 +0200 (CEST) Final-Recipient: rfc822; admin@m-hosting.eu Original-Recipient: rfc822;admin@m-hosting.eu Action: failed Status: 5.7.1 Remote-MTA: dns; mailcow.m-hosting.eu Diagnostic-Code: smtp; 554 5.7.1 This message does not meet our delivery requirements
wie kann ich das beheben habe mehrere lösungsvorschläge bekommen auch schon probiert aber leider kein erfolg bitte um hilfe