b123400.net.		30 IN SOA ns1.linode.com. i.b123400.net. (
				2021000026 ; serial
				14400      ; refresh (4 hours)
				14400      ; retry (4 hours)
				1209600    ; expire (2 weeks)
				86400      ; minimum (1 day)
				)

b123400.net.		30 IN TXT "pnut_verification=b123400 https"
b123400.net.		30 IN TXT
"protonmail-verification=bab2ba52064a975d397735405431882785ab19a3"
b123400.net.		30 IN TXT "v=spf1 include:_spf.protonmail.ch mx ~all"

b123400.net.		30 IN A	139.162.79.152
b123400.net.		30 IN AAAA 2400:8902::f03c:91ff:fee0:eda0

Mail exchangers:
b123400.net.		30 IN MX 10 mail.protonmail.ch.

Name servers:
b123400.net.		30 IN NS ns5.linode.com.
b123400.net.		30 IN NS ns1.linode.com.
b123400.net.		30 IN NS ns2.linode.com.
b123400.net.		30 IN NS ns3.linode.com.
b123400.net.		30 IN NS ns4.linode.com.