Posted 12 July 2011 - 03:13 PM
First thought that comes to mind is that Outlook starts bogging down as the number of emails in folders increases.
That's why Outlook periodically "archives" older emails.
"Archived" emails in Outlook remain easily available but are stored away from the active folders such as Inbox, Sent Mail, Drafts, etc.
Not sure, but I think the bog-down starts effecting performance once number of emails in a folder reach about 150. (I could be wrong)
Since I don't know how your user-friend has XP configured and Outlook features configured to save in folders, and routinely archive, I wouldn't know any more about what is actually happening.
But it could help if you recommended to your user-friend to check the AutoArchive settings
Outlook - Tools - Options - Other - AutoArchive
It might also help to Empty - Deleted Items Folder, and Empty - Junk Mail Folder
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