3
records
Certificate Authority Authorization
TTL
CAA
Let's Encrypt
30m
mx1.busoft.de. 1800 IN CAA 0 issue "letsencrypt.org"
Text Content
TTL
TXT
SPF
v=spf1 a -all
30m
mx1.busoft.de. 1800 IN TXT "v=spf1 a -all"