www.tes.com.pk has no MX records.
Question and response
Question
dig www.transworld-home.com. MX
Answer
The response has no answer records.
Authority
transworld-home.com. 86400 SOA transworld-home.com. hostmaster.transworld-home.com. 2024050613 21600 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0