By default, a copy of your sent messages is saved in the "Sent Items" folder.
This How-To Article shows you how to change this option, and not have Outlook save a copy of your sent messages.
Sent Items Folder
1. Click the Tools menu and select "Options...".
2. Click the "E-mail Options..." button.
3. Uncheck the "Save copies of messages in Sent Items folder" check box.
Tip: If this check box isn't already checked, and you would like to save a copy of your sent messages, check the "Save copies of messages in Sent Items folder" check box.
4. Click OK.
5. Click OK.
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Disclaimer:
Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.
Outlook Express and IMAP Settings (All Windows)
This tweak allows you to correctly setup Outlook Express to use folders on the IMAP server for Drafts and Sent Mail instead of duplicating them with local folders.
Open your registry and find the key below. Where {Account ID} is the number relating to the IMAP account (e.g. 00000001). You may have to open a few sub-folders to find the correct one.
From your network administrator find out the name of the root IMAP folder (e.g. INBOX), the Drafts folder (e.g. Drafts) and the Sent Items folder (e.g. SentMail).
Create new string values (or modify existing value) named 'IMAP Root Folder', 'IMAP Drafts Folder' and 'IMAP Sent Items Folder'. Set the values to equal the details obtained in the previous step.
Exit the registry and restart Outlook Express.
Registry Settings
User Key: [HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\
{Account ID}]
Value Name: IMAP Root Folder, IMAP Drafts Folder, IMAP Sent Items Folder
Data Type: REG_SZ (String Value)
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More here:
http://office.microsoft.com/en-us/outlook/HA100750921033.aspx
Please post back if you have any more problems or questions.
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