mx1.eftel.com has no TXT records.
Question and response
Question
dig mx1.eftel.com. TXT
Answer
The response has no answer records.
Authority
eftel.com. 86400 SOA dnsmaster.eftel.com. dnsmaster.eftel.com. 2023072801 10800 3600 864000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0