Ok gurus of iOS mail - I have four accounts on my iOS mail. One is personal, one for work, one for my non-profit and one junk account for all the crap I sign up for. Right now when an email comes in, it has the standard "ding". Very nice, however I would love to be able to assign a sound to an account. So, if the phone is in my pocket and I hear an assigned sound for work, I know to check it right then as opposed to another sound that is issued for personal that I can check later. Make sense? Does that exist? Thanks in advance.