Yes, c2kni.net can receive emails.
No, c2kni.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
None
MX records
cust28976-1.in.mailcontrol.com
85.115.52.190
cust28976-2.in.mailcontrol.com
85.115.54.190
mail02.c2kni.net
85.31.137.17