Yes, net.ua can receive emails.
No, net.ua 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
185.12.115.221
MX records
relay1.net.ua
185.12.115.221
relay2.hostmaster.net.ua
93.183.202.34