"mittmel" wrote in message
...
If I understand this correctly, Outlook Exhange backs-up all email on the
Exchange server.

Assuming no personal folder in Outlook profile, yes, messages are stored on
Exchange server.

What about Microsoft Outlook? I lost my hard drive and was
wondering if there was anyway to retrieve emails from last week.

If you use Outlook with POP3 and download all messages to your Outlook
personal folder (PST file), the only way to restore is from the most recent
(good) backup.