#7 OpenSSH SCP failed to authenticate remote machine

[Balaji Rajendran]

Hi Expert,

I am new to openssh, we had openssh scp installed in windows 2008 and we have email gateway which push data to SCP server and works fine

we wanted to replicate the same functions in windows 2016, i have installed the openssh and generated private+public key, using mkdir created .ssh folder. using microsoft article renamed the .pub file to authorized_keys and pasted the remote gateway sha value and initiated the connection. But i am getting permission denied when trying to ship the datat to SCP server.
https://docs.microsoft.com/en-us/windows-server/administration/openssh/openssh_keymanagement

SCP failed to transfer to (servername):22: Permission denied (publickey,password,keyboard-interactive)

any help is much appreciated