• PHP

    alexandregz/twofactor_gauthenticator

    This RoundCube plugin adds the Google 2-step verification to the login proccess (OTP)

  • dsoares/rcguard

    Roundcube plugin that enforces reCAPTCHA for users that have too many failed logins

  • PHP

    wildwolf/log_failed_logins

    Logs failed login attempts to syslog in the format suitable for blocklist.de

  • PHP

    dsoares/blacklist

    Roundcube plugin to provide a generic access blacklist.

  • PHP

    wildwolf/recaptcha

    Adds reCAPTCHA to the login form

  • PHP

    northox/roundcube-yubikey-plugin

    A plugin to use Yubico's Yubikey 2nd factor with Roundcube webmail.

  • JavaScript

    lmr/duo_auth

    Duo Security two-factor authentication for Roundcube. Users have multiple ways to authenticate, including: 1. One-tap authentication using Duo’s mobile app. 2. One-time passcodes generated by Duo’s mobile app (works even with no cell coverage) 3. One-time passcodes delivered to any SMS-enabled phone. 4. Phone callback to any phone (mobile or landline!) 5. One-time passcodes generated by an OATH-compliant hardware token

  • PHP

    protectimus/roundcube-otp-plugin

    Protectimus OTP solution for Roundcube