attachment size in WLM and Outlook.com

Hello,

I concurrently use WLM with Outlook.com  whereas I would like to prefer WLM because I do not want every time to log in from web interface.

I have too questions:

What is the maximum number and size of attachment in Outlook.com (large ones will go throug Skydrive automatically I guess)

Can I send large attachment also directly from WLM when I am logged in with the same principle? I tried today and WLM reports me to decrease attachment size. 

Thanks a lot