The original message was received at Tue, 28 Jan 2025 10:36:09 +0100 from [165.154.252.200] ----- The following addresses had permanent fatal errors ----- (reason: 550 Mail content denied [NSjjVjUmCg+CMTG289wcKMxxqs0HicPJFDiasr3FvlXiZ9L+XCGlrN4= IP: 83.138.65.30]. https://open.work.weixin.qq.com/help2/pc/20056.) (reason: 550 User not found: lj.iang@bjtu.edu.cn) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCeVJxDwlVcUt5dgYGHjVjKwF2bB5CWAwvHBhK) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCeVJxDwlVcUt5dgYGHjVjKwF2bB5CWAwvHBhK) (reason: 550 Mail content denied [N/u+XgB1UQZ7lXH9QgPCJ8st2D0HDxYzW63tVhlWpcX6KlIL6oL6new= 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/ABFOBSMCeVNxDApZcUt5JwYGHjVjKwF2bxsRCAwvHBhK) (reason: 551 5.1.1 recipient is not exist) (reason: 550 User not found: lizhijuan@iccas.ac.cn) (reason: 550 Mailbox unavailable or access denied [NLAtegSadZQLnhCmU5CCbtowCrW4AYIR+fPoAXRtsHayCmIWG5+54SU= IP: 83.138.65.30]. https://open.work.weixin.qq.com/help2/pc/20057.) (reason: 550 Mail content denied [MM26xUelqNM/TueY+W4jX4J8VmVIKmgPyg4deCkxmqk7o/kUTmAjK3M= IP: 83.138.65.30]. https://open.work.weixin.qq.com/help2/pc/20056.) (reason: 550 Mail content denied [Nu9f9OZKLqwsd16ympbV1hSwKRI19M+d7Kzfrl26up+M6Y0GF3MZsf4= 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/ABFOBSMCeQUjXVIJcUt5fQYGHjVjKwFxaE1GWgwvHBhK) (reason: 550 5.4.1 Recipient address rejected: Access denied. [DB1PEPF000509F6.eurprd02.prod.outlook.com 2025-01-28T09:42:59.967Z 08DD3F766444645D]) (reason: 550 No such user ljcbs@public.glptt.gx.cn) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCeQdwXAlccUt5cAYGHjVjKwFxb08RDgwvHBhK) (reason: 551 5.1.1 recipient is not exist) (reason: 550 Host unknown) (reason: 550 5.7.0 DT:SPM .For more information, please visit https://feedback.qiye.163.com/static/feedback/#/bounce/ABFOBSMCeQBxWFNYcUt5cAYGHjVjKwFxb0ATDgwvHBhK) (reason: 550 Mail content denied [MM26xUelqNM/XXPSDV2nkTwzqyOf8Hjh21eKeVcALw26eJy3U6juDMM= IP: 83.138.65.30]. https://open.work.weixin.qq.com/help2/pc/20056.) ----- Transcript of session follows ----- ... while talking to mxbiz.vip.qq.com.: >>> DATA >> DATA ... User unknown ... Deferred: 450 Requested action not taken: bp5wygCXp6BQpZhnvGmMAA--.58255S3, please try again ... while talking to eu-smtp-inbound-2.mimecast.com.: >>> RCPT To: ... Deferred: 451 Internal resource temporarily unavailable - https://community.mimecast.com/docs/DOC-1369#451 [6_S7AhqANUuKvdpQx6Yz3w.uk126] >>> DATA >> RCPT To: ... Deferred: 451 Internal resource temporarily unavailable - https://community.mimecast.com/docs/DOC-1369#451 [VSCnPFpeOgC6FJmZFSrKtQ.uk21] >>> DATA >> DATA >> DATA ... Deferred: Connection timed out with dmspk.cn. ... Deferred: Connection timed out with duocaitang.cn. ... while talking to mxhm.qiye.163.com.: >>> DATA >> DATA ... User unknown >> DATA >> DATA ... User unknown ... while talking to mxbiz1.qq.com.: >>> DATA >> DATA ... Deferred: Connection refused by mail.oceansking.com.cn. ... while talking to mail.xjtu.edu.cn.: >>> DATA ... Deferred: 450 Requested action not taken: LAGowACXulPTpZhniylSAQ--.898S3, please try again ... while talking to mxbiz1.qq.com.: >>> DATA ... Deferred: Connection timed out with museaudio.com.cn.w.kunluncan.com. ... while talking to hzmx01.mxmail.netease.com.: >>> DATA >> DATA ... User unknown >> RCPT To: ... User unknown >>> DATA >> DATA >> DATA ... User unknown ... Host unknown (Name server: ssissi.cn: host not found) ... while talking to hzmx01.mxmail.netease.com.: >>> DATA >> DATA ... Deferred: 450 Requested action not taken: LAGowACnzVY2p5hngTZSAQ--.9781S3, please try again 550 5.1.2 ,... Host unknown (Name server: .: host not found) ... while talking to mxbiz1.qq.com.: >>> DATA