Yes, arno.fi can receive emails.
No, arno.fi 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
85.24.138.144
MX records
alt1.aspmx.l.google.com
64.233.186.27
alt2.aspmx.l.google.com
74.125.193.26
alt3.aspmx.l.google.com
66.102.1.27
aspmx.l.google.com
209.85.232.27