Unknown protocol when trying to connect to remote host with stunnel

I'm trying to set up a stunnel for WebDav on Windows. I want to connect 80 port on my local interface to 443 on another machine in my network. I can ping the machine remote machine. However when I use the tunnel, I'm getting this error all the time

SSL state (accept): before/accept initialization
SSL_accept: 140760FC: error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol

There is nothing in the logs on the other machine and here's my stunnel connection config

[https]
accept  = 127.0.0.2:80
connect = 10.0.0.60:443
verify = 0

I've set it up to accept all certificates so this shouldn't be a problem with a self-signed certificate remote host uses.

Does anyone knows what might be the problem that this connection cannot be eastablished?

I've found the solution for this problem. I've been using SSL in server mode when I actually needed client mode.