That's an interesting question. I think you can do something like this:
class contextmenu extends rcube_plugin
{
  public function init()
  {
    $this->merge_texts('localization/');
  }

  public function merge_texts($dir, $add2client = false)
  {
    $rcube = rcube::get_instance();
    $texts = $rcube->read_localization(realpath(slashify($this->home) . $dir));

    if (!empty($texts)) {
      $merge = [];

      foreach ($texts as $key => $value) {
        $merge[$key] = $value;
      }

      $rcube->load_language($_SESSION['language'] ?? null, null, $merge);

      // add labels to client
      if ($add2client && method_exists($rcube->output, 'add_label')) {
        if (is_array($add2client)) {
          $js_labels = array_map([$this, 'label_map_callback'], $add2client);
        } else {
          $js_labels = array_keys($merge);
        }

        $rcube->output->add_label($js_labels);
      }
    }
  }
}
assuming your texts are in a folder called localization and files use the regular Roundcube naming scheme. Essentially do the same thing as the native add_texts method but merge (and strip the domain) instead.

Hi, I want to change a couple of strings in the program/localization/en_GB/labels.inc file, e.g. $labels['trash'], but need to do it with a plugin to avoid having to customise on every roundcube update. I am familiar with how to write a plugin, but don't seem to be able to work out how to change the default $labels['trash'] string in a plugin. Any ideas would be very welcome!

I updated the "compose" page





I deleted the reply-to & followup-to, I have never seen them used....
I'll create version 1.4 soon, if there are no complaints.

Enjoy !

i cannot get roundcube working on sending emails on version php 8.3-fpm but it worked perfectly on version 8.1-fpm

i really need help with this

here is the errors from the error logs
[08-Jun-2025 15:50:53 -0400]: <ich4ro8d> PHP Error: Invalid response code received from server (POST /roundcube/?_task=mail&_unlock=loading1749412248926&_framed=1&_lang=en&_action=send)
[08-Jun-2025 15:50:53 -0400]: <ich4ro8d> PHP Error: Invalid response code received from server (POST /roundcube/?_task=mail&_unlock=loading1749412248926&_framed=1&_lang=en&_action=send)
[08-Jun-2025 15:50:53 -0400]: <ich4ro8d> SMTP Error: Authentication failure:  (Code: -1) in /var/www/html/roundcube/program/lib/Roundcube/rcube.php on line 1799 (POST /roundcube/?_task=mail&_unlock=loading1749412248926&_framed=1&_lang=en&_action=send)

on latest stable version btw

Hello,

I use rouncube webmail and some day's ago i saw a lot of items in the folder "sended mail" is gone. All the mail i sended this year and in 2024 has gone and i did not delete them myselves.

Is there any solution to get this mail back again?

Thanks
Chris

Roundcube is a mail client. What you are describing sounds like a server side problem. Please contact your e
mail provider for support.

I'm not able to receive or send emails. Emails I sent to myself from another email address are returned with this label     

This is an automatically generated Delivery Status Notification.     

Delivery to the following recipients was aborted after 14.8 hour(s):

Thanks for the suggestions. No further ahead:

upload_max_filesize   64M   64M
post_max_size      64M   64M

Hello,
small feature request - on new message composing, when subject is not specified and first file attached, set automatically subject with attached file name value.

1. Make sure you restart Apache after you made the change to the php.ini file.
2. Create a file (example info.php) in the Roundcube folder with the following:
<?php
phpinfo();
Then go to that file and search for "upload_max_filesize" and "post_max_size" to see what the setting actual is. The config files that are used to get to those settings are shown at the top of the page.