This POP3 server does not allow plaintext passwords. Please try changing to 'Encrypted password' as the 'Authentication method' in the 'Account Settings | Server settings'.
Server POP3 tidak mendukung sandi teks polos. Coba ganti 'Metode otentikasi' menjadi 'Sandi dienkripsi' pada 'Pengaturan Akun | Pengaturan Server'.