Yes, netmails.net can receive emails.
No, netmails.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
50.63.202.33
MX records
mailstore1.secureserver.net
68.178.213.243
smtp.secureserver.net
68.178.213.203