Why are my emails not sending from my PHP script?
NOTE: If you are using our Xenon Server cluster, you will need to make this change to effectively run your php scripts.
When sending mail from our system we require you add the -f switch to your PHP script. This is to ensure that the message sends with a valid return path email address set and not our server address. This helps to ensure that our system does not get blacklisted and your mails send properly. Please note adding this to .htaccess will only work for PHP5.
You can add the -f switch across your domain by adding the following to your .htaccess file:
php_value mail.force_extra_parameters -fwebmaster@example.com
You will need to change webmaster@example.com to match the from address in your mail script.
