Yes, sudomail.biz can receive emails.
No, sudomail.biz 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
104.154.169.201
MX records
mx1.sudomail.biz
54.215.211.151
mx2.sudomail.biz
54.215.232.175