t3lib_utility_Mail

final class t3lib_utility_Mail {

        /**
         * Proxy for the PHP mail() function. Adds possibility to hook in and send the mails in a different way.
         * The hook can be used by adding function to the configuration array:
         * $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/utility/class.t3lib_utility_mail.php']['substituteMailDelivery']
         *
         * @param       string          Email address to send to.
         * @param       string          Subject line, non-encoded. (see PHP function mail())
         * @param       string          Message content, non-encoded. (see PHP function mail())
         * @param       string          Additional headers for the mail (see PHP function mail())
         * @param       string          Additional flags for the sending mail tool (see PHP function mail())
         * @return      boolean         Indicates whether the mail has been sent or not
         * @see         PHP function mail() []
         * @link        http://www.php.net/manual/en/function.mail.php
         */
        public static function mail($to, $subject, $messageBody, $additionalHeaders = null, $additionalParameters = null) {
                $success = TRUE;
                if (is_array($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/utility/class.t3lib_utility_mail.php']['substituteMailDelivery'])) {
                        $parameters = array(
                                'to' => $to,
                                'subject' => $subject,
                                'messageBody' => $messageBody,
                                'additionalHeaders' => $additionalHeaders,
                                'additionalParameters' => $additionalParameters,
                        );
                        $fakeThis = FALSE;
                        foreach ($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/utility/class.t3lib_utility_mail.php']['substituteMailDelivery'] as $hookMethod) {
                                $success = $success && t3lib_div::callUserFunction($hookMethod, $parameters, $fakeThis);
                        }
                } else {
                        $success = @mail($to, $subject, $messageBody, $additionalHeaders, $additionalParameters);
                }

                if (!$success) {
                        t3lib_div::sysLog('Mail to "' . $to . '" could not be sent (Subject: "' . $subject . '").', 'Core', 3);
                }
                return $success;
        }
}