dns-c.rotld.Ro has no MX records.
Question and response
Question
dig dns-c.rotld.Ro. MX
Answer
The response has no answer records.
Authority
rotld.Ro. 900 SOA ns-a.rnc.Ro. hostmaster.rotld.Ro. 1772082206 3600 3600 604800 900
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0