FIX Security to restrict email sending was not efficient

build/debian/conf.php.install

htdocs/admin/system/constall.php

htdocs/admin/system/dolibarr.php

htdocs/comm/mailing/card.php

htdocs/conf/conf.php.example

htdocs/filefunc.inc.php

htdocs/langs/en_US/mails.lang

htdocs/master.inc.php

scripts/emailings/mailing-send.php