ePrompter

I have just started using this program and it is top rated by me.
ePrompter automatically and simultaneously checks and retrieves your email messages from up to sixteen password protected email accounts AND lets you read, delete and respond to any of your messages with a simple click on the account of your choice - without ever having to launch your email program or go to your webmail's site. Importantly, when ePrompter retrieves messages, it leaves the original messages on your various email accounts' servers and/or webmail sites.

ePrompter works with AOL, Gmail, Hotmail, Yahoo, POP3, Earthlink, Excite, iName, Juno, Lycos, Mail.com, Mindspring, MSN, MyWay, Netscape, OneBox, Rediffmail, SBC Yahoo, Switchboard, USA.net and hundreds of other email domains.

ePrompter notifies you which accounts have new messages and how many new messages you have in each account, once new messages have been retrieved.
ePrompter lets you forward and reply back through the account that your messages were retrieved from. You can also send original messages through any account that you have working on your ePrompter without ever having to launch your email program or go to your webmail's site. It also features an address book.

ePrompter let's you delete unwanted spam or suspicious looking mail - the kind that might contain viruses - again without having to launch your email program or go to your webmail's site.