We have a Mail-in-a-box solution on a device inside my network - set up by someone else who is now un-contactable.
The mail is working ok, but I need to log onto the control panel to make some necessary changes, but I only have the email of the admin account - the recorded password doesn’t work.
I have tried to SSH to the Mail-in-a-box server to reset the admin password account (as per here), but I don’t have details of any of the accounts created, or any of the keys created. When I use root account, I get the error message “No supported authentication methods available (server sent: publickey)”
Is there a way to sort this?
Thanks in advance