zzb.bz.			30 IN SOA dns1.topdn.net. domain.topdn.net. (
				2019112406 ; serial
				10800      ; refresh (3 hours)
				7200       ; retry (2 hours)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

zzb.bz.			30 IN TXT "v=spf1 include:mailgun.org ~all"

zzb.bz.			30 IN A	172.105.206.132

Mail exchangers:
zzb.bz.			30 IN MX 10 mxa.mailgun.org.
zzb.bz.			30 IN MX 10 mxb.mailgun.org.

Name servers:
zzb.bz.			30 IN NS dns2.topdn.net.
zzb.bz.			30 IN NS dns1.topdn.net.
zzb.bz.			30 IN NS dns3.topdn.net.