Yes, o-nalogah.ru can receive emails.
No, o-nalogah.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
None
MX records
generator.email
51.38.115.65
mail.o-nalogah.ru
127.0.0.1