Exchange 2010 Mail Security TLS with HSBC

Dear all,

  I have setup an all-in-one exchange server without edge server role. However, it is needed to have TLS mail communication setup with HSBC. May I know what exactly configuration do I need? Do I need to implement an edge server with public cert?

  Can I enable TLS without edge server and with self-signed cert?

Thanks a lot

Best Regards,

Elroy