Yes, catchletter.com can receive emails.
No, catchletter.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
35.188.100.68
MX records
mail.catchletter.com
3.14.99.188
mx1.catchletter.com
3.14.99.188
mx2.catchletter.com
3.19.129.183