Yes, heximail.com can receive emails.
No, heximail.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
192.161.187.200
MX records
mx1.emailowl.com
107.170.11.17
mx2.emailowl.com
107.170.208.118
mx3.emailowl.com
188.226.221.25