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Polaris has developed true two-factor authentication across Webmail, SMTP, POP and IMAP. You login to your service by entering your e-mail address and password, with the 6 digit code provided by an app installed on your smartphone, appended to it. For example, when accessing WebMail or using your email client, if your regular password is: johndoe and the current code is 123456, enter: johndoe123456 in the password field, in order to authenticate.
After you have been granted access, check the "How to get it working - User panel" section in the link above for the user side configuration.
See how an administrator can enable 2fa for a specific user in our our respective 2fa wiki page.
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