Yes, whtjddn.33mail.com can receive emails.
No, whtjddn.33mail.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
54.152.106.218
MX record
smtp1.ec2.33mail.com
54.175.71.36