Undelivered Mail Returned to Sender
23 Jun
2021
23 Jun
'21
9:26 a.m.
I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do so, please include this problem report. You can delete your own text from the attached returned message. The mail system <sdevarak@cuhk.edu.hk>: host cuhk-edu-hk.mail.protection.outlook.com[104.47.124.36] said: 550 5.4.1 All recipient addresses rejected : Access denied. AS(201806271) [HK2APC01FT046.eop-APC01.prod.protection.outlook.com] (in reply to end of DATA command)
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