sttl.in.		21600 IN SOA ns3.silvertouch.com. vinod.silvertouch.com. (
				2017032301 ; serial
				86400      ; refresh (1 day)
				7200       ; retry (2 hours)
				3600000    ; expire (5 weeks 6 days 16 hours)
				86400      ; minimum (1 day)
				)

sttl.in.		14400 IN TXT "v=spf1 +a +mx +ip4:50.23.92.242 +ip4:50.97.247.218 ~all"

sttl.in.		14400 IN A 50.23.93.64

Mail exchangers:
sttl.in.		14400 IN MX 0 sttl.in.

Name servers:
sttl.in.		21600 IN NS ns4.silvertouch.com.
sttl.in.		21600 IN NS ns3.silvertouch.com.