Question and response
Question
dig smtp.sfera.net. TXT
Answer
smtp.sfera.net. 600 TXT "v=spf1 ip4:80.91.49.222 ~all"
Authority
sfera.net. 3600 NS dns.sfera.net.
sfera.net. 3600 NS thunder.sfera.net.
Additional
dns.sfera.net. 3600 A 80.91.49.210
dns.sfera.net. 3600 AAAA 2a02:6000:53:0:0:0:0:53
thunder.sfera.net. 3600 A 80.91.50.194
thunder.sfera.net. 3600 AAAA 2a02:6000:53:1:0:0:0:53
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0