The original message was received at Tue, 28 Jan 2025 09:40:40 +0100 from [165.154.252.200] ----- The following addresses had permanent fatal errors ----- (reason: 550 Mail content denied [Nu9f9OZKLqwsaJPkyE5fICVNuhz3bwSys6t6MAhLWMv9Ri7DpimN2jw= 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/ABFOBSMCfFd5DltbcUt5IgYGHjVjLFd9bBpOXQwvHBhK) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCfFd5DltbcUt5IgYGHjVjLFd9bBpOXQwvHBhK) (reason: 551 5.1.1 recipient is not exist) (reason: 551 5.1.1 : Recipient address rejected: Failed recipient validation check) (reason: 551 5.1.1 recipient is not exist) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCfFJzUg1ccUksdAYGHjVudwd9bk1BXAwvHBJa) (reason: 451 4.4.1 reply: read error from mta-ent.21cn.com.) ----- Transcript of session follows ----- ... Deferred: abm-ltd.cn.: No route to host ... while talking to smtp.acm.gov.pt.: >>> DATA ... Deferred: 451 4.3.2 Please try again later >> DATA ... Deferred: Connection timed out with brightsteel.cn. ... while talking to britishcouncil-org-cn.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (S77714) [DB5PEPF00014B88.eurprd02.prod.outlook.com 2025-01-28T08:42:23.215Z 08DD3F57C2586230] ... while talking to hzmx01.mxmail.netease.com.: >>> DATA >> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (S77714) [HK2PEPF00006FB0.apcprd02.prod.outlook.com 2025-01-28T08:42:57.273Z 08DD3E3E0E204BF0] ... while talking to hzmx01.mxmail.netease.com.: >>> DATA ... User unknown >> RCPT To: : Recipient address rejected: Failed recipient validation check 550 5.1.1 ... User unknown >>> DATA >> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (S77714) [DU2PEPF00028D10.eurprd03.prod.outlook.com 2025-01-28T08:44:51.106Z 08DD3E343DA81B41] ... while talking to hzmx01.mxmail.netease.com.: >>> DATA ... User unknown >> DATA ... Deferred: langjiete.com.cn.: No route to host ... while talking to mta-ent.21cn.com.: >>> DATA ... Deferred: Connection timed out with sansk.com.cn. ... Deferred: Connection timed out with wh-nqcku3hrj4prpx9swy1.my3w.com. ... while talking to m1.feishu.cn.: >>> DATA ... Deferred: 450 soft bounce ... while talking to mx-apac.mail.gm0.yahoodns.net.: >>> MAIL From: SIZE=2957 ... Deferred: 421 4.7.0 [TSS04] Messages from 83.138.65.30 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes ... while talking to yml-com-cn.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (S77714) [SG1PEPF000082E2.apcprd02.prod.outlook.com 2025-01-28T08:48:50.683Z 08DD3E63331569F9] ... while talking to zijinmining-com-hk.mail.protection.outlook.com.: >>> DATA ... Deferred: 451 4.7.500 Server busy. Please try again later from [83.138.65.30]. (S77714) [HK2PEPF00006FAE.apcprd02.prod.outlook.com 2025-01-28T08:48:57.418Z 08DD3E2898DDF03E]