rediffdns.com has no MX records.
Question and response
Question
dig rediffdns.com. MX
Answer
The response has no answer records.
Authority
rediffdns.com. 1800 SOA ns1.rediff.com. webmaster.rediff.co.in. 2024102902 86400 7200 3628800 1800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0