Password Retention in Outlook
Outlook may continue to prompt for your password each time you start it, even though you've checked the box that you want Outlook to retain the password. This behavior involves a series of related configuration settings. The following steps will normally enable Outlook to retain the password correctly.
In Outlook, go to the Tools menu, Account Settings. Select the Exchange account and click the Change button, then More Settings. Look on the Security tab for the Always Prompt for logon credentials checkbox. This checkbox must be cleared.
The authentication mechanism specified in the RPC over HTTP configuration must be set to NTLM. To verify or change that setting follow these steps.
- Start Outlook 2003 or 2007.
- On the Tools menu, click E-mail Accounts.
- Click View or change existing e-mail accounts, and then click Next.
- Under Outlook processes e-mail for these accounts in the following order, click Microsoft Exchange Server, and then click Change.
- On the Exchange Server Settings page, click More Settings.
- Click the Connection tab.
- Click Exchange Proxy Settings.
- Under Proxy authentication settings, click NTLM Authentication in the Use this authentication when connecting to my proxy server for Exchange list.
- Click OK two times.
- Click OK again in response to the prompt that you must restart Outlook for the changes to take effect.
- Click Next, and then click Finish.
- Restart Outlook.
LmCompatibilityLevel in your registry must be set to 3.
- Click Start, click Run, type regedit in the Open box, and then press ENTER.
- Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\
- In the right pane, double-click lmcompatibilitylevel.
- In the Value data box, type a value of 3 and then click OK.
- Quit Registry Editor.
- Restart your computer.
Save your password.
- Open the Windows Stored User Names and Passwords dialog.
- In Windows Vista, Control Panel (Classic View), click on User Accounts icon, click on Manage your network passwords.
- In Windows XP, Control Panel (Classic View), click on User Accounts icon, click on Advanced tab page, click on Manage Passwords button.
- Click the Add button.
- If there is no Add button, see below.
- Enter *.webville.net
- Enter your logon name, example username@domain.com
- Enter your mailbox password, click ok and close.
- Launch Outlook and when prompted for your password, click Remember Password.
- Close Outlook after login is complete.
- Launch Outlook again and it should have retained your password.
The Add button may not be available in Windows XP Media Center Edition. Online forums indicate this may be a feature that is not available in Media Center Edition. We don't have definite confirmation of that.
The Add button may not be available in Windows XP Professional or Home editions depending on a registry setting. You can change this registry setting if necessary.
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Lsa\
Value Name: disabledomaincreds
Value Type: REG_DWORD
Values: 0 = allow domain credentials to be stored
1 = do not store domain credentials
Reference http://technet.microsoft.com/en-us/library/cc743443.aspx regarding the disabledomaincreds registry setting.
Reference http://support.microsoft.com/kb/820281 for more details.