#36341 [NEW]: Changes to combat mail form spam

From: Date: Thu, 09 Feb 2006 14:16:10 +0000
Subject: #36341 [NEW]: Changes to combat mail form spam
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-93074@lists.php.net to get a copy of this message
From:             paul at xciv dot org
Operating system: FreeBSD
PHP version:      4.4.2
PHP Bug Type:     Feature/Change Request
Bug description:  Changes to combat mail form spam

Description:
------------
I have two suggestions for modifications to help combat the problem of
mail form spam.

Firstly I would like to see mail.force_extra_parameters back-ported to the
4.x branch - not everyone is ready to upgrade to 5.x in production yet.

Secondly I would like to suggest that environment variables from the PHP
environment are exposed to the sendmail binary.

I will explain why this is useful.


Reproduce code:
---------------
With the mail.force_extra_parameters option, I can set different
parameters per Apache vhost.

This can be very useful because I can set custom parameters like: -xs
my.vhost.domain

How is this useful?  Well if I then set a new sendmail_path to my own
custom wrapper script I can pick up these custom parameters and do two
things:

1. Log the originating vhost, number of recipients etc.

2. Add an X-Header: in the mail detailing which vhost the mail originated
from - before passing it to the real sendmail.

This allows me to track which vhost sent mail from the httpd!  So I can
now track which vhost may have an insecure mail form if I get spam
reports.  With say 100 vhosts this is *invaluable*.

My second suggestion would make this a lot easier and a lot more
expandable.  If the PHP environment variables were exposed to sendmail
then I could even pick up such details as the script filename etc and this
would then not require the use of custom mail.force_extra_parameters.



-- 
Edit bug report at http://bugs.php.net/?id=36341&edit=1
-- 
Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=36341&r=trysnapshot44
Try a CVS snapshot (PHP 5.1): http://bugs.php.net/fix.php?id=36341&r=trysnapshot51
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=36341&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=36341&r=fixedcvs
Fixed in release:             http://bugs.php.net/fix.php?id=36341&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=36341&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=36341&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=36341&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=36341&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=36341&r=notwrong
Not enough info:              http://bugs.php.net/fix.php?id=36341&r=notenoughinfo
Submitted twice:              http://bugs.php.net/fix.php?id=36341&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=36341&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=36341&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=36341&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=36341&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=36341&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=36341&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=36341&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=36341&r=mysqlcfg


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