The original message was received at Tue, 28 Jan 2025 10:32:26 +0100 from [165.154.252.200] ----- The following addresses had permanent fatal errors ----- (reason: 550 permanent failure for one or more recipients (liu.liu@audio-technica.com.hk:blocked)) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCeVNwUwpYcUl3cQYGHjVudwcnPk1DCwwvHBJa) (reason: 550 Mail content denied [NLAtegSadZQL210NeXuncKhd2decTjP5wRiWcEiGkm2ydRdjUwqwlBQ= IP: 83.138.65.30]. https://open.work.weixin.qq.com/help2/pc/20056.) (reason: 550 Host unknown) (reason: 551 5.1.1 recipient is not exist) (reason: 550 Relay not allowed) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCeVx1XFoIcUovdAYGHjVudwcmb0ATVAwvHBJa) (reason: 550 Mail content denied [OGqA/Ptf1JSOjyZQiQXyY0drKSqwaJjAuUdOO9L2iyQLxj5TLY3OUBU= IP: 83.138.65.30]. https://open.work.weixin.qq.com/help2/pc/20056.) (reason: 550 Host unknown) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCeQZ5DlsIcUt5IAYGHjVjKwFxbxpPDwwvHBhK) (reason: 550 Mail content denied [MbmMx8+oB+H19ZapzGGwqTConAxJlJdYBa5QcAdDvFf14zrXcR1i7fM= IP: 83.138.65.30]. https://open.work.weixin.qq.com/help2/pc/20056.) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCeQcnCQkKcUAvfAYGHjVjKwFxOR5DVAwvHBhK) ----- Transcript of session follows ----- 451 cytec.cn: Name server timeout ... Deferred: Connection timed out with a005v6.cache.dbappwaf.cn. 451 cytec.cn: Name server timeout ... while talking to d501869.a.ess.au.barracudanetworks.com.: >>> DATA >> DATA >> DATA >> DATA ... Deferred: 450 Requested action not taken: bp5wygAnOaKwpZhnK2qMAA--.41773S3, please try again 550 5.1.2 ... Host unknown (Name server: bst-intemational.com.cn: host not found) ... while talking to hzmx01.mxmail.netease.com.: >>> DATA ... User unknown >> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (S77714) [HK3PEPF0000021A.apcprd03.prod.outlook.com 2025-01-28T09:39:10.910Z 08DD3E3DFC21E43B] 451 cytec.cn: Name server timeout ... while talking to secure100.t-systems.com.: >>> DATA ... User unknown >> DATA ... Deferred: 451 4.3.2 Please try again later >> DATA ... Deferred: 451 4.3.2 Please try again later >> DATA ... Deferred: 454 Transient reject by behaviour spam at Rcpt State(Connection IP address:83.138.65.30)ANTISPAM_BAT[01201311R1769S1810121220, maildocker-behaviorspam033018096094]: much too frequently sendingCONTINUE >> DATA ... Deferred: 454 Transient reject by behaviour spam at Rcpt State(Connection IP address:83.138.65.30)ANTISPAM_BAT[01201311R8769S5410121220, maildocker-behaviorspam033068235217]: much too frequently sendingCONTINUE >> DATA >> DATA >> DATA >> DATA >> DATA ,,,,,,,... Deferred: 421-4.7.28 Gmail has detected an unusual rate of unsolicited mail. To protect 451 cytec.cn: Name server timeout 451 cytec.cn: Name server timeout 451 cytec.cn: Name server timeout 451 cytec.cn: Name server timeout 451 cytec.cn: Name server timeout ... while talking to mxbiz1.qq.com.: >>> DATA >> DATA >> DATA >> DATA >> DATA >> DATA ... Deferred: 421-4.7.28 Gmail has detected an unusual rate of unsolicited mail. To protect 550 5.1.2 ... Host unknown (Name server: pro-wonderful.com.tw: host not found) 451 cytec.cn: Name server timeout 451 cytec.cn: Name server timeout ... while talking to hzmx01.mxmail.netease.com.: >>> DATA ... Deferred: Connection timed out with scheck.cn. 451 cytec.cn: Name server timeout 451 cytec.cn: Name server timeout ... while talking to mxbiz1.qq.com.: >>> DATA >> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (S77714) [DU2PEPF00028D09.eurprd03.prod.outlook.com 2025-01-28T09:45:05.682Z 08DD3E28E775AE1A] 451 cytec.cn: Name server timeout ... while talking to hzmx01.mxmail.netease.com.: >>> DATA ... Deferred: 421 4.7.0 Not allowed. ... Deferred: Connection refused by yjz-ssl.my.bestcdn.vip. 451 cytec.cn: Name server timeout 451 cytec.cn: Name server timeout