Inbox Manager for Pocket PC - Inbox Manager lets you look at the messages
Inbox Manager lets you look at the messages stored on your POP3 mail server without downloading them. It is very useful for managing your mail remotely, for example leaving "that copy of the huge document" on the server until you get home but retrieving and reading the urgent messages. Inbox Manager retrievs just the headers from the mail on the server and displaying a list of messages include Size, From, To, Subject and Time fields.
This is the Shareware version. The full version can be purchased by clicking on the "Buy Now" button below for around $9.95 USD.