PHP Fatal error with attachment

Hi everybody,

I installed the rc-1 version of roundcube, after configuration of main.inc.php, db.inc.php .htaccess and php.ini. I can't join to my email attachment with a size superior to 2MB, I have this message :

[24-May-2007 15:00:51] PHP Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 6321677 bytes) in /var/www/roundcube/program/lib/Mail/mimePart.php on line 283

I check my configuration with the phpinfo() function and upload_max_size, post_max_size and memory_limit set at 16M (local and global value).

Do you have any ideas to fixe that ?

Sincerely,

Renaud Hager