Yes, tldrmail.de can receive emails.
No, tldrmail.de 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
smtp.trashmail.com
157.90.89.149
smtp2.trashmail.com
smtp2.trashmail.com