Yes, mysudomail.com can receive emails.
No, mysudomail.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
104.154.169.201
MX records
mx1.mysudomail.com
54.215.211.151
mx2.mysudomail.com
54.215.232.175