app-it.shopmania.org has no MX records.
Question and response
Question
dig app-it.shopmania.org. MX
Answer
The response has no answer records.
Authority
shopmania.org. 300 SOA dns1.stabletransit.com. domains.shopmania.net. 1738583807 21600 3600 1814400 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0