About a moth ago I started having a problem sending or receiving emails from my PC or IPhone from anyone that was using an MSN.COM email address.  The email goes into my sent folder as if it was sent but it is never recived by the party on the other end and I do not receive emails from them.  My Iphone OS is 7.03 and my hotmail server is bay-m.hotmail.com and the Domain says optional.

I would be willing to upgrade the account to an MSN or Outlook account if that resolves the problem.

Thank you for any assistance you can give me.