I pulled this from a previous post I made.
GlimmerMail
GlimmerMail is the only Native Palm mail client that provides a direct wireless connection to your Hotmail and MSN email accounts. GlimmerMail allows you to access your Hotmail and MSN messages when you really need them! No longer will you need to use the slow and crippled mobile Hotmail/MSN website. With GlimmerMail, just press the Get button and all of your new messages are downloaded right to your Palm.
You can do more than just read your messages! GlimmerMail enables you to synchronize your Palm with your Hotmail/MSN account. If you delete or mark a message read on the website, the next time you use GlimmerMail, the changes can be synchronized to your Palm. In addition, GlimmerMail has full support for folder management. When you add/delete/rename a folder on your Palm, the change is reflected in your account. When you move a message on your Palm, it will be moved on the server as well.
If you don't want to check your messages through the Hotmail/MSN websites anymore, GlimmerMail is the perfect solution for you. Don't worry about costly subscription fees that other mail programs may require. Once you purchase GlimmerMail, it's yours! You can use GlimmerMail to easily move and delete messages, change the read status, setup message filters, write new messages and more all from your Palm.
Features: - Features new to GlimmerMail 1.05 are marked with an asterick
- *Configure GlimmerMail as your default mail client
- *Support for an unlimited amount of Hotmail/MSN accounts (Add/Remove/Rename accounts locally)
- *Add/Rename/Delete folders locally AND on the server
- *Move messages from one folder to another locally AND on the server
- *Read messages while you are downloading them. The download process no longer blocks you from using GlimmerMail
- *Increased messages-per-folder limit from 100 to 500
- *Color selection for each email account: Now you can set the look and feel for each account
- *Simplified User Interface: New icons allow you to do what you want a lot easier
- *Smart Icons: In message view, if you can't perform the operation you won't see an icon or menu item there
- *Deleting messages on the server is now queued until the next time you get messages
- *Quicker Downloads: Some users (Carrier Dependent) may benefit from improved speed when getting new messages
- *Support for messages in ISO-8859-1 format
- *You can Reply to messages that have not had their message bodies downloaded
- *In message view you can go to the previous/next message
- *Additional Shortcut Keys: If your Palm device has a keyboard, take advantage of it by using the new quick keys
- *Send Text in HTML or Text format
- *View the reply/forward text as you write the new message
- *When in Trial Mode, you can see how many days you have left on the trial
- *Increase Stability: Most of GlimmerMail was re-written to take advantage of better memory handling
- *Improved error handling: Over 60 error screens were added to assist in identifying GM issues
- Fifteen day free trial
- No subscription costs required
- Download and View Text and HTML messages directly from your Hotmail or MSN account
- Access your Hotmail/MSN folders
- Delete messages locally and/or on the server
- Customize message download options
- Minimize Bandwidth usage by only downloading headers. Later you can select specific messages and download their message bodies
- Message download filters (get new messages, get messages smaller than x kilobytes, and more)
- Setup message read status priority so that each time you check for new messages, the read status will be synchronized with priority on the server or the Palm
- Full 5-way navigation support
- Send new messages directly through your Hotmail/MSN account
- Reply to and Forward existing messages
- Direct access to your Palm contact list when sending messages
- Message icons that show each messages status (Is the message downloaded or only the message header? Is there an attachment?)
- Select from two different sized fonts to view messages and message headers
- Keyboard shortcut keys
- Context-sensitive online help
Screenshots: 

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