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: Poppy.Matlapeng@amplats.co.za host za-smtp-inbound-1.mimecast.co.za [41.74.193.201] SMTP error from remote mail server after RCPT TO:: 550 Invalid Recipient - https://community.mimecast.com/docs/DOC-1369#550 [v_SJDsSsN5-k2KWzbsb-0w.za29]