Can I use PHPs safe_mode with Horde?
PHP’s safe_mode is not officially supported by Horde, although we work around its restrictions wherever we can. Many have tried to use it, and have reported various levels of success. To run in safe_mode you will need to modify the PHP safe_mode settings. You may also have to change some code in Horde or other Horde components in order to make things work properly. Some of the known issues are not being able to set php maximum execution time, problems with spell checking, not being able to use Sendmail (without modifying the php safe_mode configuration), and problems with any sort of file uploads (adding attachments in IMP, file uploads in gollem, etc). If you run the Apache web server with virtual hosts and with PHP’s safe_mode enabled by default, you can use the Apache PHP module configuration command php_admin_value in your main Apache configuration file to remove safe_mode for the Horde virtual host. For example:
