The original message was received at Tue, 28 Jan 2025 11:07:38 +0100 from [165.154.252.200] ----- The following addresses had permanent fatal errors ----- (reason: 550 Host unknown) (reason: 550 Message contained spam content (antispamcloud.spam.nwsjnk21)) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCe1ByCA0OcUt5JQYGHjVjKwF9b05CCQwvHBhK) (reason: 550 SA: 14.0) (reason: 550 Host unknown) (reason: 550 5.1.1 MXIN501 mailbox rfusaro@hispeed.ch unknown ;id=ciaftYXuOkMAjciant8UTZ;sid=ciaftYXuOkMAj;mta=mx1-prd-nl1-uch;d=20250128;t=111313[CET];ipsrc=83.138.65.30;) (reason: 550 #5.1.0 Address rejected.) (reason: 550 Mail content denied [NSjjVjUmCg+CMTG289wcKMzI1TGh0porhPK2bdIg6ecnIJR3o7A9kMo= IP: 83.138.65.30]. https://open.work.weixin.qq.com/help2/pc/20056.) (reason: 550 5.7.1 Rejected by spam filter (d3d92076-dd60-11ef-b9f3-3dc88a9635a1)) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCewV2CV1dcUt5cgYGHjVjKwF8Yk8SWAwvHBhK) (reason: 550 Mailbox unavailable or access denied [ORLs+t4qA9N4Majf6RLPUw7BDkfYqB+pZwxdN/nWksbHAzKxKK0krnc= IP: 83.138.65.30]. https://open.work.weixin.qq.com/help2/pc/20057.) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCewUiXFxVcUt5dgYGHjVjKwF8PEsUVAwvHBhK) ----- Transcript of session follows ----- ... while talking to alt4.aspmx.l.google.com.: >>> 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: bii.-astar.edu.sg: host not found) ... while talking to mx1.cleanmx.pt.: >> DATA >> DATA >> DATA ... Host unknown (Name server: epis-automation.cn: host not found) ... while talking to aspmx.l.google.com.: >>> DATA >> DATA >> DATA >> DATA >> DATA ... Deferred: 421-4.7.28 Gmail has detected an unusual rate of unsolicited mail. To protect ... while talking to mxin2-hispeed-ch.edge.unified.services.: >>> DATA ... User unknown >> RCPT To: ... User unknown >>> DATA >> DATA >> DATA >> DATA >> DATA >> DATA ... Deferred: 421-4.7.28 Gmail has detected an unusual rate of unsolicited mail. To protect ... Deferred: Connection timed out with rhpipe.cn. ... while talking to ashr.ciberserver.com.: >>> DATA ... Deferred: Connection timed out with sovell.com.cn.w.kunlunaq.com. ... while talking to hzmx01.mxmail.netease.com.: >>> DATA >> DATA >> DATA ... Deferred: 421 4.7.0 Not allowed. ... while talking to mx-apac.mail.gm0.yahoodns.net.: >>> MAIL From: SIZE=2882 ,... 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