Here is a simple script that can used to stop mail header injections from webforms hosted on the server. Script must be included as auto_prepend_file in php.ini and it is checking all posted values for some suspicious strings. If it finds any - it will add anti-spam- string. There are few options for reports also, so you can monitor what and who is beeing caught.
The script can be downloaded at http://www.fight-spam.org.








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