sdp.rs.			30 IN SOA ns1.istanco.com. server-admin.istanco.com. (
				2025022201 ; serial
				3600       ; refresh (1 hour)
				1800       ; retry (30 minutes)
				1209600    ; expire (2 weeks)
				86400      ; minimum (1 day)
				)

sdp.rs.			30 IN TXT "v=spf1 a mx ip4:66.94.97.77 -all"

sdp.rs.			30 IN A	208.109.215.186

Mail exchangers:
sdp.rs.			30 IN MX 0 mail.sdp.rs.

Name servers:
sdp.rs.			30 IN NS ns1.istanco.com.
sdp.rs.			30 IN NS ns2.istanco.com.