Mail5015.site4now.net has no MX records.
Question and response
Question
dig Mail5015.site4now.net. MX
Answer
The response has no answer records.
Authority
site4now.net. 10800 SOA ns1.site4now.net. info.site4now.net. 2026022403 10800 3600 1296000 3600
Additional
ns1.site4now.net. 3600 A 204.188.197.84
ns1.site4now.net. 3600 A 204.188.197.246
ns1.site4now.net. 3600 A 70.39.73.45
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0