To empty out trash for PC Users:

MS Outlook:

1. Click on Edit in MS Outlook.
2. Click on Purge Deleted Messages.

Outlook Express:

1. Click on Edit in Outlook Express:
2. Click on Empty 'Deleted Items' Folder.

Netscape Messenger:

1. Click on File in Netscape Messenger.
2. Click on Empty Trash.

To empty out trash for Mac users:

Mail:

1. Click on Mailbox in Mail.
2. Click on Erase Deleted Messages In All Accounts.

Entourage:

1. Click on File in Entourage.
2. Click on Purge Deleted Items.