How to backup messages?
1. On Tools menu, click Options.

2. Select Maintenance tab.
3. Click Store Folder to get the location of your message store.
4. Highlight (select) entire path, then right click and choose
copy option.
5. Click every OK button.
6. Click Start on the Windows taskbar (lower left hand
corner of the screen).
7. Click Run.

8. Right click and select Paste option.

9. Click OK.

10. On Edit menu, click Select All.
11. Right click on the messages highlighted and select Copy.
Then, paste all files to destination.
Caution:
You are recommended to backup email (with
versions in different physical locations at different dates) on a regular
basis.
Besides, in
order to prevent your computer from getting infected by computer virus via
email, you should tighten the security configuration in Outlook Express to
prohibit scripts from running within email. Please refer
here for the detailed procedure.
(verified correct)
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Last modified: Thursday, 13-Mar-08 11:43:12