Anybody know what port androids e-mail app uses?

[Melkren]

Hi guys, in my place of work we have all outgoing ports blocked except the usual and then unblock ports as and when they are needed. I recently got the Samsung Galaxy S2 and have found that my phone cannot connect to hotmail while on the works network. I just wondered if anybody knew what port this uses so that I can get it opened.

I don't think it's a hotmail port as it used to work fine on my iPhone.

Many thanks,

Melkren