ns.rdconsult.lv has no MX records.
Question and response
Question
dig ns.rdconsult.lv. MX
Answer
The response has no answer records.
Authority
rdconsult.lv. 3600 SOA bind.cnetworks.lv. admin.cnetworks.lv. 125 10800 3600 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0