66uuff.com

Can 66uuff.com receive emails?

No, 66uuff.com cannot receive emails because it has neither an A record nor MX records.

Should you allow users to sign up to your website using the domain 66uuff.com?

No, 66uuff.com is a throwaway domain and should be blocked.

How to block the temporary domain 66uuff.com?

You can use MailCheck's free API to automatically block throwaway emails. Read our documentation to get started. No registration required.

DNS Records

Source