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: justin.julius@corepeople.co.za host eu-smtp-outbound-1.mimecast.com [195.130.217.212] SMTP error from remote mail server after RCPT TO:: 550 Administrative prohibition - envelope blocked - https://community.mimecast.com/docs/DOC-1369#550 [YGvdiFpEPc2vVq9iwpFFsg.uk238]