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: jgangi@istafrica.com host ASPMX.L.google.com [74.125.68.27] SMTP error from remote mail server after RCPT TO:: 550-5.1.1 The email account that you tried to reach does not exist. Please try 550-5.1.1 double-checking the recipient's email address for typos or 550-5.1.1 unnecessary spaces. Learn more at 550 5.1.1 https://support.google.com/mail/?p=NoSuchUser u6si10224407plh.226 - gsmtp jgelden@pawc.wcape.gov.za host securemail-mx1.synaq.com [196.35.198.158] SMTP error from remote mail server after RCPT TO:: 550-rejected because 13.251.245.207 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=13.251.245.207 jgibson7@mweb.co.za host securemail-mx3.synaq.com [196.35.198.130] SMTP error from remote mail server after RCPT TO:: 550-rejected because 13.251.245.207 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=13.251.245.207 jgeldenhuys@polka.co.za host securemail-mx3.synaq.com [196.35.198.130] SMTP error from remote mail server after RCPT TO:: 550-rejected because 13.251.245.207 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=13.251.245.207 jge@mweb.co.za host securemail-mx3.synaq.com [196.35.198.130] SMTP error from remote mail server after RCPT TO:: 550-rejected because 13.251.245.207 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=13.251.245.207 jgc@icon.co.za host securemail-mx3.synaq.com [196.35.198.130] SMTP error from remote mail server after RCPT TO:: 550-rejected because 13.251.245.207 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=13.251.245.207 jg_slb@mweb.co.za host securemail-mx3.synaq.com [196.35.198.130] SMTP error from remote mail server after RCPT TO:: 550-rejected because 13.251.245.207 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=13.251.245.207 jg@metroweb.co.za host pmg2.absolutehosting.co.za [197.81.239.10] SMTP error from remote mail server after RCPT TO:: 550 5.7.1 Service unavailable; client [13.251.245.207] blocked using b.barracudacentral.org jfwishtimfs@msn.com host msn-com.olc.protection.outlook.com [104.47.51.33] SMTP error from remote mail server after RCPT TO:: 550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302). jge@fmhsa.co.za host mx1.cpmx.co.za [169.239.217.4] SMTP error from remote mail server after RCPT TO:: 550 No Such User Here