Gmail for me has been great. They have a search thing so you can search your old emails to find stuff. Also, they have tons of space, over 7Gb. THey don't use folders to organize though. They have theres tag things. You tag your mail, and archive them, and if you want to look through your old mail just click type in one of the tags. The spam folder also collects alot of junk mail, but some slip buy every now an then.