Yes, denispushkin.ru can receive emails.
No, denispushkin.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
80.78.254.156
MX records
mail.denispushkin.ru
134.0.113.244
sss.pp.ua
51.38.115.65