Yes, lokum.nu can receive emails.
No, lokum.nu 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
mail.jtw.dk
5.9.12.29
mx-it.jtw.dk
80.211.53.146