Reporting-MTA: dns;BLAPR09MB7332.namprd09.prod.outlook.com
Received-From-MTA: dns;outbound-ip121a.ess.barracuda.com
Arrival-Date: Thu, 18 Sep 2025 20:16:44 +0000

Final-Recipient: rfc822;cwilcock@cityofmelrose.org
Action: failed
Status: 5.7.134
Diagnostic-Code: smtp;550 5.7.134 RESOLVER.RST.SenderNotAuthenticatedForMailbox; authentication required; Delivery restriction check failed because the sender was not authenticated when sending to this mailbox