webmail.cianet.ro has no CNAME records.
Question and response
Question
dig webmail.cianet.ro. NS
Answer
The response has no answer records.
Authority
cianet.ro. 171 SOA ns01.cianet.ro. root.cianet.ro. 2017030229 3600 7200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0