Reporting-MTA: dns; server.dns-principal.com

Action: failed
Final-Recipient: rfc822;heng.eleanore@msn.com
Status: 5.0.0
Remote-MTA: dns; msn-com.olc.protection.outlook.com
Diagnostic-Code: smtp; 550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302). [BN8NAM04FT016.eop-NAM04.prod.protection.outlook.com 2024-06-19T18:15:03.609Z 08DC9042A4787E46]