ntp.ewerke.cc has no MX records.
Question and response
Question
dig ntp.ewerke.cc. MX
Answer
The response has no answer records.
Authority
ewerke.cc. 3600 SOA dns1.ewerke.cc. hostmaster.ewerke.cc. 2016071275 900 600 86400 3600
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0