The original message was received at Tue, 28 Jan 2025 09:17:49 +0100 from [165.154.252.200] ----- The following addresses had permanent fatal errors ----- (reason: 451 4.4.4 Mail received as unauthenticated, incoming to a recipient domain configured in a hosted te...iptions. ATTR5 [HK3PEPF00000221.apcprd03.prod.outlook.com 2025-01-29T08:15:59.811Z 08DD3E3453387172]) (reason: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [HK3PEPF0000021F.apcprd03.prod.outlook.com 2025-01-29T08:17:55.652Z 08DD3E1FB55BA0C5]) ----- Transcript of session follows ----- ... Deferred: daimyo.com.cn.: No route to host ... while talking to dniv-com-sg.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.4.4 Mail received as unauthenticated, incoming to a recipient domain configured in a hosted tenant which has no mail-enabled subscriptions. ATTR5 [HK3PEPF00000221.apcprd03.prod.outlook.com 2025-01-29T08:15:59.811Z 08DD3E3453387172] ... Deferred: Connection timed out with jinyulin.cn. ... Deferred: Connection timed out with mx3.wxjt.com.cn. ... while talking to taitra-org-tw.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [HK3PEPF0000021F.apcprd03.prod.outlook.com 2025-01-29T08:17:55.652Z 08DD3E1FB55BA0C5] Message could not be delivered for 1 day Message will be deleted from queue