vnpt.langson.vn	IN	A	112.213.89.118
vnpt.langson.vn	IN	MX	mail.vnpt.langson.vn
vnpt.langson.vn	IN	NS	ns1.pavietnam.vn
vnpt.langson.vn	IN	NS	ns2.pavietnam.vn
vnpt.langson.vn	IN	NS	nsbak.pavietnam.net
vnpt.langson.vn	IN	TXT	v=spf1 a mx ~all