Yes, fxnxs.com can receive emails.
No, fxnxs.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
69.197.18.174
MX records
aspmx.l.google.com
74.125.192.27
mail.fxnxs.com
mail.fxnxs.com