Yes, mysudo.net can receive emails.
No, mysudo.net 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.mysudo.net
54.215.211.151
mx2.mysudo.net
54.215.232.175