Yes, server.ms can receive emails.
No, server.ms 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
173.54.159.108
MX records
mx1.improvmx.com
188.165.221.134
mx2.improvmx.com
188.165.254.28