mx: us-smtp-inbound-1.mimecast.com.
mx: us-smtp-inbound-2.mimecast.com.
ns: dns1.c01.nsone.net.cn.
ns: dns1.p04.nsone.net.
ns: dns2.c01.nsone.net.cn.
ns: dns2.p04.nsone.net.
ns: dns3.c01.nsone.net.cn.
ns: dns3.p04.nsone.net.
ns: dns4.c01.nsone.net.cn.
ns: dns4.p04.nsone.net.
ns: dns5.c01.nsone.net.cn.