Error in safemode (email plugin)

i get this error in the premium email plugin:
Warning: set_time_limit() [function.set-time-limit]: Cannot set time limit in safe mode in /home/bloggpro/public_html/wp-content/mu-plugins/mass_mailer.php on line 462

im running on a system that uses cPanel, and im able to turnoff safe_mode, altough i edited php.ini in both mu-plugins and wp-content to say safe_mode: off and it still dosen´t work? what can i do about this?