Yes, lukop.dk can receive emails.
No, lukop.dk is a throwaway domain and should be blocked.
You can use MailCheck's free API to automatically block throwaway emails. Read our documentation to get started. No registration required.
A record
176.9.123.113
MX records
admin.jtw.dk
5.9.12.29
mx-it.jtw.dk
80.211.53.146