Yes, spamfree24.org can receive emails.
No, spamfree24.org 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
34.206.28.195
MX records
mail1.namebrightmail.com
216.87.78.68
mail2.namebrightmail.com
216.150.214.56