Reporting-MTA: dns;Groat.onaoc.co.uk
Received-From-MTA: dns;Aggy.onaoc.co.uk
Arrival-Date: Fri, 28 Aug 2026 00:24:55 +0000

Final-Recipient: rfc822;postmaster@onaoc.co.uk
Action: failed
Status: 5.1.10
Diagnostic-Code: smtp;550 5.1.10 RESOLVER.ADR.RecipientNotFound; Recipient not found by SMTP address lookup