The original message was received at Tue, 28 Jan 2025 09:21:14 +0100 from [165.154.252.200] ----- The following addresses had permanent fatal errors ----- (reason: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [HK2PEPF00006FB5.apcprd02.prod.outlook.com 2025-01-29T08:21:53.340Z 08DD3F0EF1A16A31]) (reason: 451 domain not found (not relaying for 83.138.65.30)) ----- Transcript of session follows ----- ... Deferred: Connection timed out with ayw8220540001.my3w.com. ... while talking to childrensociety-org-sg.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [HK2PEPF00006FB5.apcprd02.prod.outlook.com 2025-01-29T08:21:53.340Z 08DD3F0EF1A16A31] ... while talking to d197848a.ess.barracudanetworks.com.: >>> DATA ... Deferred: 451 domain not found (not relaying for 83.138.65.30) >> DATA ... Deferred: 451 domain not found (not relaying for 83.138.65.30) ... Deferred: Connection timed out with dolphin-books.com.cn. ... Deferred: jkhr.cn.: No route to host Message could not be delivered for 1 day Message will be deleted from queue