3 DNS Records Every Email Marketer Must Know #rackaid via @rackaid… by Cristian Balan | Oct 1, 2017 | Twitter3 DNS Records Every Email Marketer Must Know https://t.co/YRneAwZ12b #rackaid via @rackaid— Cristian O. Balan (@oviliz) October 1, 2017 Source by Cristian O. Balan