Reporting-MTA: dns;BL1PR09MB12025.namprd09.prod.outlook.com
Received-From-MTA: dns;outbound-ip62a.ess.barracuda.com
Arrival-Date: Thu, 11 Sep 2025 19:01:45 +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