Saying or writing a kufr statement

Aslaamualaikum
I pray you are well. Sorry to take up your time.

1)If a Muslim writes in email/question to a fatwa service or a Maulana/mufti that he has verbally said or has written kufr statements e.g.’I am not Muslim, I denounce Islam’, etc or any other kufr statements or has thought of a kufr statements intentionally when in reality he hasn’t done any of these mentioned above but still writes in email/question that he did. Does doing this make him a kaafir?

Jazakallah