The [pii_email_11fe1b3b7ddac37a081f] error is typically created when SSL encryption fails to establish a secure connection to the server. However, there are a variety of other factors that could contribute to the issue. You won't be able to authenticate if your username or password are incorrect, for example, and the app will instead display the [pii_email_11fe1b3b7ddac37a081f]] problem.

You can fix the error by following below methods: Remove any previously used accounts and change the server's port numbers. Reinstall Microsoft Outlook after uninstalling anti-virus software.