open_basedir restriction

Hello all,

I had a minor problem today after I switched our roundcube to a different virtual server. That one had the the open_basedir restriction active which led to the following error when uploading attachments:

PHP Warning: copy(): open_basedir restriction in effect. File(/tmp/phpGk2plC) is not within the allowed path(s): (/home/.../htdocs/) in /home/.../htdocs/program/steps/mail/upload.inc on line 42 ./program/steps/mail/upload.inc: if (copy($filepath, $tmpfname))

I wonder if it would be possible to use move_uploaded_file() instead of copy() as this only restricts the destination directory? It is also more secure, because only uploaded files can be moved...

  Balu