Exchange 2010 TLS Port

Hi All,

I've been asked to setup a TLS conncetor between my company and a client site. Whilst there was a lot of useless information going back and forth, I managed to set up the connector. The only thing is I'm not sure it's working.

As I said, I think I set it up OK, but I think the firewall is stopping the connector. So, my question is this... What port, or ports, does the TLS connector use in Exchange 2010?

I've read many articles, including a forum post or two in DaniWeb, and I think it's either 465 (my preferred choice), or 995 (which I think is for Secure POP3).

If you have an answer, please provide a link so I can verify your response.

Thanks