FAQ
Webmail
Does POP Peeper work with two-step verification (Hotmail, GMail, Yahoo)?
If you enable two-step verification process on your account, POP Peeper will only be able to access your account if you use IMAP or POP3. When using IMAP or POP3 with two-step verification, you will need to use Oauth2 or create a unique app password (see links below for more information).
For more information about setting up a unique app password:
Hotmail: http://windows.microsoft.com/en-us/windows/app-passwords-two-step-verification
GMail: https://support.google.com/mail/answer/1173270?hl=en
Yahoo: https://help.yahoo.com/kb/yahoo-account/quotapp-passwordquot-sln15241.html