Preferences Screen Password Options Tab
On the Password Options tab, you can configure:
Whether the system automatically remembers passwords
The length of time passwords are remembered
Open the Encryption for Email Preferences screen as explained in Accessing the Preferences Screen.
Click the Password Options tab.
Select Enable remembering of passwords.
From the Remember passwords for drop-down list, select the length of time to remember passwords from the following options
Windows Session
1 minute
5 minutes
10 minutes
15 minutes
30 minutes
60 minutes
Note: If you select the Windows Session option, you only have to enter your password once during a single Windows logon session.
Click Apply to save your changes.