HP iPAQ h5400 Series Reference Manual page 189

To delete e-mail:
1. From the Start menu, tap Inbox.
2. Tap the folder where you saved the e-mail.
3. Tap and hold the e-mail you want to delete.
4. Tap Delete to move the e-mail to the Deleted Items folder.
5. Tap Tools, and then Empty Deleted Items to permanently
delete the e-mail.
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CAUTION: When you delete e-mail from your iPAQ Pocket PC, you
also delete it from your personal computer.
Reference Guide
Communicating
7–15