the truncate feature lets you set a point at which long e-mail items truncate when downloading to your organizer. by default, this truncate value is 4,000 characters. by truncating long messages, you reduce the time it takes to synchronize your desktop e-mail and mail, as well as the amount of storage space e-mail uses on your organizer.
truncation is separate and independent from filtering.
to truncate e-mail items:
1. tap truncate in the hotsync options dialog box.

2. tap to select the truncation setting you want.
if you select the maximum setting, messages can be 8,000 characters; longer messages are truncated. if you select a lower value, you'll have more room for e-mail items.
3. tap ok.