mail.exofilter.com has no TXT records.
Question and response
Question
dig mail.exofilter.com. TXT
Answer
The response has no answer records.
Authority
exofilter.com. 3600 SOA ns1.exonet.nl. hostmaster.exonet.nl. 2026030501 28800 7200 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0