The original message was received at Tue, 28 Jan 2025 09:27:08 +0100 from [165.154.252.200] ----- The following addresses had permanent fatal errors ----- (reason: 554 Email rejected due to security policies - https://community.mimecast.com/docs/DOC-1369#554 [XmRdOszIOMSZizxTlquCpg.uk241]) (reason: 554 Email rejected due to security policies - https://community.mimecast.com/docs/DOC-1369#554 [XmRdOszIOMSZizxTlquCpg.uk241]) (reason: 554 Email rejected due to security policies - https://community.mimecast.com/docs/DOC-1369#554 [XmRdOszIOMSZizxTlquCpg.uk241]) ----- Transcript of session follows ----- ... while talking to eu-smtp-inbound-2.mimecast.com.: >>> DATA >> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [SG1PEPF000082E1.apcprd02.prod.outlook.com 2025-01-28T12:53:59.669Z 08DD3E82D963BE69] ... while talking to jel-com-sg.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [HK2PEPF00006FB0.apcprd02.prod.outlook.com 2025-01-28T12:54:02.494Z 08DD3E3E0E82C8BB] ... while talking to komoshoppes-com-sg.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [HK2PEPF00006FAF.apcprd02.prod.outlook.com 2025-01-28T12:54:06.694Z 08DD3E531CB69474] ,... Deferred ... while talking to oncocare-sg.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [SG1PEPF000082E2.apcprd02.prod.outlook.com 2025-01-28T12:54:10.089Z 08DD3E6333806B19] ... while talking to oypesq-sg.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [HK2PEPF00006FB1.apcprd02.prod.outlook.com 2025-01-28T12:54:14.145Z 08DD3E48C9C56D4E] ... while talking to raise-sg.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [SG1PEPF000082E2.apcprd02.prod.outlook.com 2025-01-28T12:54:17.198Z 08DD3E6333807FBC] ... while talking to restoreheartcentre-com-sg.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [HK2PEPF00006FB4.apcprd02.prod.outlook.com 2025-01-28T12:54:21.418Z 08DD3E74047013DE] ... while talking to sal-org-sg.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [SG1PEPF000082E2.apcprd02.prod.outlook.com 2025-01-28T12:54:23.761Z 08DD3E6333808C7B] ... while talking to singlab-com-sg.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [HK2PEPF00006FB4.apcprd02.prod.outlook.com 2025-01-28T12:54:27.356Z 08DD3E7404701EA0] ... while talking to sntc-org-sg.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [SG2PEPF000B66D0.apcprd03.prod.outlook.com 2025-01-28T12:54:30.722Z 08DD3E9E3638A8BC] ... while talking to sris-astar-edu-sg01e.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [HK3PEPF0000021C.apcprd03.prod.outlook.com 2025-01-28T12:54:34.062Z 08DD3E52F87EC9AB] Warning: message still undelivered after 4 hours Will keep trying until message is 1 day old