Yes, pp.ua can receive emails.
No, pp.ua 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
178.62.234.149
MX records
mx1.pp.ua.uadns.com
167.114.237.244
mx2.pp.ua.uadns.com
167.114.237.244
mx3.pp.ua.uadns.com
167.114.246.74