Yes, rtrtr.com can receive emails.
No, rtrtr.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
None
MX records
mail.rtrtr.com
64.38.116.53
mail2.rtrtr.com
64.38.116.53
mail3.rtrtr.com
64.38.116.53