chlum1866.cz.		3599 IN	SOA ns1.regzone.cz. administrator.czechia.cz. (
				2019040201 ; serial
				10800      ; refresh (3 hours)
				1800       ; retry (30 minutes)
				1814400    ; expire (3 weeks)
				3600       ; minimum (1 hour)
				)

chlum1866.cz.		4 IN TXT "v=spf1 mx ~all"

chlum1866.cz.		3599 IN	A 81.0.233.241

Mail exchangers:
chlum1866.cz.		21599 IN MX 10 mail.chlum1866.cz.

Name servers:
chlum1866.cz.		3599 IN	NS ns1.regzone.cz.
chlum1866.cz.		3599 IN	NS ns1.regzone.de.
chlum1866.cz.		3599 IN	NS ns1.regzone.info.