So I haven't really had to play with Windows 10's built in email client until I was helping this old man. What a piece of shit it is. So modern that you can't even find your way around. Very, very limited on the options as well. Basically just an IMAP client to sync. As long as your using one of the major email providers you will probably be fine, but for people using old POP3 clients it sucks. Can't import shit into it as well. So I went looking for a free email client, and basically Windows Mail, Windows Live Mail, are both dead. I ended up installing Thunderbird, you know Mozilla's email client. Surprisingly it works quite well and has a bunch of features built in. A poor mans Outlook basically. I have always seen it out there just have never used it, but I am impressed.