I realized that you guys were having problem with IMAP several days ago and have fixed this problem. However, from the recent fix, it seems to break to compatibility with the mail app. I can't get any new emails unless if I do "Take all accounts offline" and bring it back online.
I do not have to do this before the IMAP outages and now it seems the fix make it incompatible. I have an email account with Go Daddy as well and it's working just fine.
I hope you guys fix this as soon as possible.
Thanks!