The original message was received at Tue, 28 Jan 2025 11:38:34 +0100 from [165.154.252.200] ----- The following addresses had permanent fatal errors ----- (reason: 550 Host unknown) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCegJzCQ1dcUovdQYGHjVudwZ1YhoWVAwvHBJa) (reason: 550 Host unknown) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCegJ0D1pccUAvfAYGHjVjKwEjYk5HWQwvHBhK) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCegJ0D1pccUAvfAYGHjVjKwEjYk5HWQwvHBhK) (reason: 550 Host unknown) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCdVR5Ul8NcUt5cQYGHjVjKwEjbUhFWAwvHBhK) (reason: 550 Host unknown) (reason: 550 Mail content denied [M0BS2NE0lcNPLLOsTe6rMqRy99O81wrFYJLU+93jQ1NpWZGJ2devoro= IP: 83.138.65.30]. https://open.work.weixin.qq.com/help2/pc/20056.) (reason: 554 5.7.1 : Recipient address rejected: Invalid-Recipient.) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCdVd3W1hVcUt5JwYGHjVjKwEjPElGCwwvHBhK) (reason: 550 User not found: wangguomei@opt.cn) (reason: 551 5.1.1 recipient is not exist) (reason: 550 Mail content denied [MM26xUelqNM/H7wfDi8827uLVvClJlcQVLXePA9PGymBjVMEQfnw85w= IP: 83.138.65.30]. https://open.work.weixin.qq.com/help2/pc/20056.) (reason: 550 Host unknown) ----- Transcript of session follows ----- 550 5.1.2 ... Host unknown (Name server: coldchain.panasonic.cn: host not found) ... while talking to qiye163mx01.mxmail.netease.com.: >>> DATA ... Host unknown (Name server: costind.gov.cn: host not found) ... while talking to hzmx01.mxmail.netease.com.: >>> DATA ... Deferred: Connection timed out with drbnb.com.cn. 550 5.1.2 ... Host unknown (Name server: fiberfree.com.cn: host not found) ... while talking to smtp.foton.com.cn.: >>> DATA >> DATA ... Host unknown (Name server: ime.cc.cn: host not found) ... while talking to mxbiz1.qq.com.: >>> DATA >> DATA ,... Deferred: 450 Requested action not taken: OEB0ygB3MEjntJhnQRTnAQ--.9868S3, please try again ... while talking to mail.xjtu.edu.cn.: >>> DATA ,... Deferred: 450 Requested action not taken: KgGowADHJkTztJhnSMVUAQ--.9920S3, please try again ... while talking to nus.in.tmes.trendmicro.com.: >>> DATA : Recipient address rejected: Invalid-Recipient. 554 5.0.0 Service unavailable >> DATA >> DATA ... User unknown ... while talking to xchzmx01.mxmail.netease.com.: >>> DATA ... User unknown ... Deferred: ritt.cn.: No route to host ... while talking to mxbiz1.qq.com.: >>> DATA ,,... Host unknown (Name server: .: host not found) 550 5.1.2 ... Host unknown (Name server: yalinadg.com.cn: host not found)