Yes, 672643.net can receive emails.
No, 672643.net 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
87.98.247.5
MX records
mxext1.mailbox.org
80.241.60.212
mxext2.mailbox.org
80.241.60.215
mxext3.mailbox.org
80.241.60.216