why can I NOT send more than 5 files in hotmail even though it was sent to me from a hotmail account

I received an email from a friend's hotmail account but when I attempted to forward it, without any alteration to the original it wouldn't send and I was advised that I should remove some of the content and try again as I am limited to a maximum of 5 attachments. What a load of **** is my immediate reaction, all of a sudden gmail looks very attractive.