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: dorrisc@netactive.co.za host securemail-mx3.synaq.com [196.35.198.130] 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 dorothykh@mweb.co.za host securemail-mx3.synaq.com [196.35.198.130] 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 dorothyk@mweb.co.za host securemail-mx3.synaq.com [196.35.198.130] 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 dorruso@cybersmart.co.za host mail3.mx.cybersmart.co.za [196.41.127.11] SMTP error from remote mail server after RCPT TO:: 550 no mailbox by that name is currently available dorothy.van_der_merwe@novartis.com host mx08-0019ad02.pphosted.com [185.132.182.223] SMTP error from remote mail server after pipelined DATA: 550 5.1.1 User Unknown