Free email encryption for Windows
To modify an existing Outlook 98/2000 email account for use with SecExMail, please follow the steps detailed below.
Click on the Tools menu and choose Accounts from the available options. The window below will appear.
Choose the account you wish to configure for use with SecExMail and click Properties. The window below will appear.
Click on the Servers tab and modify the POP3 and SMTP server settings to 127.0.0.1 or "localhost" as shown below.
Click OK to complete your configuration.