I recently switched from a 3GS to the 4S. With my 3GS, e-mail deletion from the server when I deleted it from the iPhone was fast & seamless. The 4S options/layout is different and when I delete messages from the phone, they don't delete from the server, still show up as unread when viewed from the computer, and will reload multiple times to my iPhone. I've also noted that the mail options vary between different types of email account (i.e. Yahoo vs. local ISP). Have any of you had this issue & do you know how to fix it? Thanks in advance for your help!