cats.st.		30 IN SOA ns2.ss-servers.info. sysadmin.cvh.jp. (
				2021080201 ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				10800      ; minimum (3 hours)
				)

cats.st.		30 IN TXT "v=spf1 +a +mx include:_spf.ss-servers.info ~all"

cats.st.		30 IN A	115.166.150.42

Mail exchangers:
cats.st.		30 IN MX 10 mail.cats.st.

Name servers:
cats.st.		30 IN NS ns2.ss-servers.info.
cats.st.		30 IN NS ns1.ss-servers.info.