webmail.intramo.net.do has no CNAME records.
Question and response
Question
dig webmail.intramo.net.do. NS
Answer
The response has no answer records.
Authority
intramo.net.do. 8925 SOA ns1.linode.com. d\.mera.claro.net.do. 2021000020 14400 14400 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0