Redmine

I am trying to set up Redmine to receive incoming messages. I have sorted out the router and the postfix general configuration, but I am having difficulty with the pushing into Redmine.. It always times out on the connection:

Posting to http://passfield.net/proglog/mail_handler...
/usr/lib/ruby/1.9.1/net/http.rb:762:in `initialize': Connection timed out - connect(2) (Errno::ETIMEDOUT)
        from /usr/lib/ruby/1.9.1/net/http.rb:762:in `open'
        from /usr/lib/ruby/1.9.1/net/http.rb:762:in `block in connect'
        from /usr/lib/ruby/1.9.1/timeout.rb:54:in `timeout'
        from /usr/lib/ruby/1.9.1/timeout.rb:99:in `timeout'
        from /usr/lib/ruby/1.9.1/net/http.rb:762:in `connect'
        from /usr/lib/ruby/1.9.1/net/http.rb:755:in `do_start'
        from /usr/lib/ruby/1.9.1/net/http.rb:744:in `start'
        from ./rdm-mailhandler.rb:20:in `post_form'
        from ./rdm-mailhandler.rb:102:in `submit'
        from ./rdm-mailhandler.rb:145:in `<main>'

Can anyone help?