Yes, 4mydomain.com can receive emails.
No, 4mydomain.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
52.58.78.16
MX records
mx121.m1bp.com
198.133.158.250
mx121.mb5p.com
198.133.158.250