Yes, diffamr.com can receive emails.
No, diffamr.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
smtp02.topdns.com
77.247.183.138
smtp03.topdns.com
85.159.232.242
smtp04.topdns.com
109.201.142.226