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AS(201806281) [DB5EUR01FT021.eop-EUR01.prod.protection.outlook.com] BLYWAY002@mail.uct.ac.za all hosts for 'mail.uct.ac.za' have been failing for a long time (and retry time not reached) blylet001@mail.uct.ac.za all hosts for 'mail.uct.ac.za' have been failing for a long time (and retry time not reached) blxgil001@mail.uct.ac.za all hosts for 'mail.uct.ac.za' have been failing for a long time (and retry time not reached) blwcan001@mail.uct.ac.za all hosts for 'mail.uct.ac.za' have been failing for a long time (and retry time not reached) blwajoa001@mail.uct.ac.za all hosts for 'mail.uct.ac.za' have been failing for a long time (and retry time not reached) blue_y_l@sina.com.cn host freemx3.sinamail.sina.com.cn [123.126.45.192] SMTP error from remote mail server after RCPT TO:: 552 5.2.1 Quota exceeded or service disabled. bluemk@ifrica.com host aspmx.l.google.com [142.251.12.26] SMTP error from remote mail server after RCPT TO:: 550-5.1.1 The email account that you tried to reach does not exist. 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