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It is making more sense now that settings on the client are mentioned. &nbsp;I configured Outlook using POP3, which is designed to delete mail from the server as soon as it is downloaded. &nbsp;IMAP would have been a smarter choice. &nbsp;I am used to the Exchange server settings screens, which I did not see while configuring the client at home and ended up using POP3 protocol.
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It is making more sense now that settings on the client are mentioned.  I configured Outlook using POP3, which is designed to delete mail from the server as soon as it is downloaded.  IMAP would have been a smarter choice.  I am used to the Exchange server settings screens, which I did not see while configuring the client at home and ended up using POP3 protocol.

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I connected to the office via vpn from home to Exchange 5.5 mailbox with Outlook 2000. &nbsp;It downloaded all my email to my home Outlook. &nbsp;The next day I find all email in my Outlook 2003 inbox gone. &nbsp;I imported pst files made in the am that were stored local to my desktop, but am still missing email from the last 6 months. &nbsp;What did I do? &nbsp;Why did connecting to the Exchange server actually move all of my mail?
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I connected to the office via vpn from home to Exchange 5.5 mailbox with Outlook 2000.  It downloaded all my email to my home Outlook.  The next day I find all email in my Outlook 2003 inbox gone.  I imported pst files made in the am that were stored local to my desktop, but am still missing email from the last 6 months.  What did I do?  Why did connecting to the Exchange server actually move all of my mail?

Outlook

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.