smtp.mailcomp.net has no TXT records.
Question and response
Question
dig smtp.mailcomp.net. TXT
Answer
The response has no answer records.
Authority
mailcomp.net. 300 SOA x.ns.joker.com. hostmaster.joker.com. 2024110768 14400 3600 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0