Yes, inboxkitten.com can receive emails.
No, inboxkitten.com 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
104.18.51.225
MX records
mxa.mailgun.org
52.11.9.113
mxb.mailgun.org
52.25.162.252