I see smart casual as less dressy than business casual, but I could be wrong.
Though it doesn't hurt to error on the side of slightly more formal for a job interview. Nice jeans, a button-down and a sportcoat should do it. Good luck!
Thats so random Hotmail sucks in terms of protection, so I know my mail occasionally spam peeps (as I get also spam mail from friends on hotmail), but random that it gets to you lol, dont have you on my mail list, I dont think.
Yahoo still exist? I also have gmail account for more professional use, but I cant be bothered getting use to it to make it my main, have had my hotmail one since 97 (made it as a kid lol) so keep it out of habit.