mail.espharmacy.space has no CNAME records.
Question and response
Question
dig mail.espharmacy.space. NS
Answer
The response has no answer records.
Authority
espharmacy.space. 3580 SOA dns.espharmacy.space. hostmaster.espharmacy.space. 1608841105 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0