You can access emails of an account from three sections:

1. The Email Manager page that lists all email accounts. To view emails from this page, go to Email Manager. Click on View Emails button for the desired account.
   
2. The Update Account Page accessible by going to Email Manager and under the email account you would like to update, click Manage Account button.
3. By logging to the account from [wp_email_manager_account_login] shortcode’s form. Learn more here.