mail.clearcable.ca has no TXT records.
Question and response
Question
dig mail.clearcable.net. TXT
Answer
The response has no answer records.
Authority
clearcable.net. 3600 SOA ns1.clearcable.ca. hostmaster.clearcable.ca. 1772728765 10800 3600 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0