SSH config on Windows when working under a HTTP proxy - windows

Question

I'm trying to set up my ~/.ssh/config file to connect on servers through the HTTP proxy my company is using, but it's falling everytime...
Does anyone know how to do this ?
I'm working on Windows 7, using the Git Bash tool, and here is my current ~/.ssh/config:
Host github.com
HostName github.com
IdentityFile ~/.ssh/id_rsa
ProxyCommand connect -H XX.XX.XX.XXXX:8080 %h 443
The command ssh -T git#github.com -v outputs :
OpenSSH_7.1p2, OpenSSL 1.0.2d 9 Jul 2015
debug1: Reading configuration data /c/Users/name/.ssh/config
debug1: /c/Users/name/.ssh/config line 1: Applying options for github.com
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Executing proxy command: exec connect -H XX.XX.XX.XXXX:8080 github.com 443
debug1: permanently_drop_suid: 1201653
debug1: identity file /c/Users/user/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/gregv/.ssh/id_rsa-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.1
ssh_exchange_identification: Connection closed by remote host

Answer 1

OK, my problem was actually the port set on 443, here is the correct ~/.ssh/config file file that is working for me :
Host github.com
IdentityFile ~\.ssh\id_rsa
ProxyCommand connect -H XX.XX.XX.XXXX:8080 %h %p
ForwardAgent yes