Yes, walkmail.ru can receive emails.
No, walkmail.ru 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
87.236.16.78
MX records
mx1.beget.com
5.101.158.68
mx2.beget.com
185.78.30.71