Yes, xn--mllmail-n2a.com can receive emails.
No, xn--mllmail-n2a.com 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
104.27.146.69
MX record
loti3.papierkorb.me
94.16.112.195