Question and response
Question
dig spf.mailjet.com. TXT
Answer
spf.mailjet.com. 3600 TXT "v=spf1 ip4:87.253.232.0/21 ip4:185.189.236.0/22 ip4:185.211.120.0/22 ip4:185.250.236.0/22 ip4:45.14.148.0/22 ~all"
Authority
mailjet.com. 7200 NS ns0.mljt.tech.
mailjet.com. 7200 NS ns1.mljt.tech.
mailjet.com. 7200 NS ns2.mljt.tech.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0