This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: albert@probeat.co.za host mx1.tld-mx.com [169.239.219.2] SMTP error from remote mail server after end of data: 550 High probability of spam albert@isegroup.co.za host mx1.tld-mx.com [169.239.218.2] SMTP error from remote mail server after end of data: 550 High probability of spam albert.tshidavhu@labour.gov.za host securemail-mx2.synaq.com [196.35.198.158] SMTP error from remote mail server after RCPT TO:: 550-rejected because 52.221.55.32 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=52.221.55.32 albert.venter@eng.up.ac.za host alt4.aspmx.l.google.com [142.250.152.27] 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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AS(201806281) [DB5EUR01FT003.eop-EUR01.prod.protection.outlook.com]