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Article ID: 121507, created on May 8, 2014, last review on Sep 21, 2016

  • Applies to:
  • Plesk Automation 11.5


An attempt to login to Roundcube webmail fails with the following error:

Invalid request! No data was saved.


Login attempt is performed via HTTP protocol, however access to Roundcube webmail interface is configured via HTTPS only.

On the webmail node (Management Node by default):

    # grep https /usr/share/psa-roundcube/config/ | grep -v '/'
    $rcmail_config['force_https'] = true;
    $rcmail_config['use_https'] = true;


  1. Access the webmail interface via HTTPS protocol.
  2. Or disable force HTTPS option to be able to use HTTP as well:

    1. Back up the original config file:

      cp /usr/share/psa-roundcube/config/{,.back}
    2. Set the $rcmail_config['force_https'] option to false:

      $rcmail_config['force_https'] = false;
    3. Restart web server on the webmail node:

      service httpd restart

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