mx2.zoho.com has no TXT records.
Question and response
Question
dig mx2.zoho.com. TXT
Answer
The response has no answer records.
Authority
zoho.com. 300 SOA ns1.zohocorp.com. dnsadmin.vtitan.com. 2026022208 7200 1800 1209600 3600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0