E-mail Notech.US tak bisa pop

Saya barusan setting pop e-mail notech.us tapi kenapa masih tak bisa di
dowload memlaui Outlook ? Setiap log in selalu minta passwords.

Settingnnya sudah benar :

     POP
     mail.unitedemailsystems.com
     110

      IMAP
     mail.unitedemailsystems.com
     143

      SMTP
     mail.unitedemailsystems.com (auth Req.)
     25 (no port 26)


    Setting IMAP itu untuk apa ?

    Thanks
                                                       Herry




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