Well there are a couple of ways to do this and my favorite and the way I find easiest is slope intercept method. The formula is:
y=mx+b
so using 1 as an example: y=-2/5x+3
I not too familiar with Hotmails features but you would have to (A) change all the photos quality setting to the lowest to see if it will fit into a email (B) Compress all the photos into 1 file by putting them into a zip file or rar file (C) do both. It kind of depends on the size of all the...