The original message was received at Tue, 28 Jan 2025 09:23:59 +0100 from [165.154.252.200] ----- The following addresses had permanent fatal errors ----- (reason: 550 "The mail server detected your message as spam and has prevented delivery.") (reason: 451 4.4.1 reply: read error from mxw.mxhichina.com.) (reason: 451 4.4.1 reply: read error from mxw.mxhichina.com.) ----- Transcript of session follows ----- ... Deferred: Connection timed out with dzyrmuqa0jni9.cloudfront.net. ... Deferred: Connection timed out with handte.cn. ... while talking to hkex-com-hk.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (AS780082) [HK3PEPF0000021E.apcprd03.prod.outlook.com 2025-01-28T12:34:35.056Z 08DD3E5EC3CA6049] ... while talking to imre-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) [SG2PEPF000B66CA.apcprd03.prod.outlook.com 2025-01-28T12:34:37.902Z 08DD3F380E26FD71] ... while talking to mail.huachengeducation.com.sg.: >>> DATA ... Deferred: 421 4.7.0 Not allowed. ... while talking to mxn.mxhichina.com.: >>> DATA >> DATA ... Deferred: Connection timed out with nicca.com.cn. ... Deferred: Connection timed out with smkj.wxjoi.com. ... Deferred: Connection timed out with sp.sharknames.com. Warning: message still undelivered after 4 hours Will keep trying until message is 1 day old