Hey everyone,

Hope everyone is doing well! So I might seem a little dumb to post this but I've googled and searched every possible thing I can think of to get my contact form to work and send an email. The validation, which in this case is defaulted to jquery works fine. it's when I submit the script to send an email that has the issue. Can anyone look at my code and tell me what I'm doing wrong? Thanks in advance!

//top of page
<?php

$hasError = false;
$sent = false;

if(isset($_POST['submit'])){
   $name = trim(htmlspecialchars($_POST['name'], ENT_QUOTES));
   $email = trim($_POST['email']);
   $message = trim(htmlspecialchars($_POST['message'], ENT_QUOTES));

   $fieldsArray = array(
      'name' => $name,
      'email' => $email,
      'message' => $message
   );

   $errorArray = array();

   foreach($fieldsArray as $key => $val){
      switch ($key){
     case 'name':
     case 'message':
        if(empty($val)){
           $hasError = true;
           $errorArray[$key] = ucfirst($key) . " field was left empty.";
        }
        break;
     case 'email':
        if(!filter_var($email, FILTER_VALIDATE_EMAIL)){
           $hasError = true;
           $errorArray[$key] = "Invalid Email Address Entered";
        }else{
           $email = filter_var($email, FILTER_SANITIZE_EMAIL);
        }
        break;
      }
   }

   if($hasError !== true){
      $to = "myemailaddress@myemail.com";
      $subject = "New subject!";
      $msgcontents = "Name: $name<br>Email: $email<br>Message: $message";
      $headers = "MIME-Version: 1.0 \r\n";
      $headers .= "Content-type: text/html; charset=iso-8859-1 \r\n";
      $headers .= "From: $name <$email> \r\n";
      $mailsent = mail($to, $subject, $msgcontents, $headers);
      if($mailsent){
     $sent = true;
     unset($name);
     unset($email);
     unset($message);
      }
   }
}

?>

//above form
<?php
               if($sent === true){
                  echo "<h2 class='success'>Thanks! Your message has been sent successfully!</h2>";
               }elseif($hasError === true){
                  echo '<ul class="errorlist">';
                  foreach($errorArray as $key => $val){
                 echo "<li>" . ucfirst($key) . " field error - $val</li>";
                  }
                  echo '</ul>';
               }
            ?>

Thanks again! Any help is very much appreciated!

Is it that your email isn't reaching it's destination or that you're not getting your "Thanks" message?

It's actually both

Also are you running on Windows or Linux/Unix?

It's running through Godaddy on a windows server. Do I need to talk to them to see what's wrong? Does the code look like it should work?

Well I have the script working but I can't figure out how to get the messages to display withing the "#contact" section in variable form. I have a feeling I would need to do it in the form of an if statement in php. something along the lines of if(form has been submitted successfully){echo $success}else{ echo $fail}. Something along the lines of that.

Its becase of mail server not configerd properly. U can use this class to configer a gmail

class SMTP
{
    /**
     * The PHPMailer SMTP Version number.
     */
    const VERSION = '5.2.7';

    /**
     * SMTP line break constant.
     */
    const CRLF = "\r\n";

    /**
     * The SMTP port to use if one is not specified.
     */
    const DEFAULT_SMTP_PORT = 25;

    /**
     * The PHPMailer SMTP Version number.
     * @type string
     * @deprecated This should be a constant
     * @see SMTP::VERSION
     */
    public $Version = '5.2.7';

    /**
     * SMTP server port number.
     * @type int
     * @deprecated This is only ever ued as default value, so should be a constant
     * @see SMTP::DEFAULT_SMTP_PORT
     */
    public $SMTP_PORT = 25;

    /**
     * SMTP reply line ending
     * @type string
     * @deprecated Use the class constant instead
     * @see SMTP::CRLF
     */
    public $CRLF = "\r\n";

    /**
     * Debug output level.
     * Options:
     *   0: no output
     *   1: commands
     *   2: data and commands
     *   3: as 2 plus connection status
     *   4: low level data output
     * @type int
     */
    public $do_debug = 0;

    /**
     * The function/method to use for debugging output.
     * Options: 'echo', 'html' or 'error_log'
     * @type string
     */
    public $Debugoutput = 'echo';

    /**
     * Whether to use VERP.
     * @type bool
     */
    public $do_verp = false;

    /**
     * The timeout value for connection, in seconds.
     * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2
     * @type int
     */
    public $Timeout = 300;

    /**
     * The SMTP timelimit value for reads, in seconds.
     * @type int
     */
    public $Timelimit = 30;

    /**
     * The socket for the server connection.
     * @type resource
     */
    protected $smtp_conn;

    /**
     * Error message, if any, for the last call.
     * @type string
     */
    protected $error = '';

    /**
     * The reply the server sent to us for HELO.
     * @type string
     */
    protected $helo_rply = '';

    /**
     * The most recent reply received from the server.
     * @type string
     */
    protected $last_reply = '';

    /**
     * Constructor.
     * @access public
     */
    public function __construct()
    {
        $this->smtp_conn = 0;
        $this->error = null;
        $this->helo_rply = null;

        $this->do_debug = 0;
    }

    /**
     * Output debugging info via a user-selected method.
     * @param string $str Debug string to output
     * @return void
     */
    protected function edebug($str)
    {
        switch ($this->Debugoutput) {
            case 'error_log':
                //Don't output, just log
                error_log($str);
                break;
            case 'html':
                //Cleans up output a bit for a better looking, HTML-safe output
                echo htmlentities(
                    preg_replace('/[\r\n]+/', '', $str),
                    ENT_QUOTES,
                    'UTF-8'
                )
                . "<br>\n";
                break;
            case 'echo':
            default:
                echo gmdate('Y-m-d H:i:s')."\t".trim($str)."\n";
        }
    }

    /**
     * Connect to an SMTP server.
     * @param string $host    SMTP server IP or host name
     * @param int $port    The port number to connect to
     * @param int $timeout How long to wait for the connection to open
     * @param array $options An array of options for stream_context_create()
     * @access public
     * @return bool
     */
    public function connect($host, $port = null, $timeout = 30, $options = array())
    {
        // Clear errors to avoid confusion
        $this->error = null;

        // Make sure we are __not__ connected
        if ($this->connected()) {
            // Already connected, generate error
            $this->error = array('error' => 'Already connected to a server');
            return false;
        }

        if (empty($port)) {
            $port = self::DEFAULT_SMTP_PORT;
        }

        // Connect to the SMTP server
        if ($this->do_debug >= 3) {
            $this->edebug('Connection: opening');
        }

        $errno = 0;
        $errstr = '';
        $socket_context = stream_context_create($options);
        //Suppress errors; connection failures are handled at a higher level
        $this->smtp_conn = @stream_socket_client(
            $host . ":" . $port,
            $errno,
            $errstr,
            $timeout,
            STREAM_CLIENT_CONNECT,
            $socket_context
        );

        // Verify we connected properly
        if (empty($this->smtp_conn)) {
            $this->error = array(
                'error' => 'Failed to connect to server',
                'errno' => $errno,
                'errstr' => $errstr
            );
            if ($this->do_debug >= 1) {
                $this->edebug(
                    'SMTP ERROR: ' . $this->error['error']
                    . ": $errstr ($errno)"
                );
            }
            return false;
        }
        if ($this->do_debug >= 3) {
            $this->edebug('Connection: opened');
        }

        // SMTP server can take longer to respond, give longer timeout for first read
        // Windows does not have support for this timeout function
        if (substr(PHP_OS, 0, 3) != 'WIN') {
            $max = ini_get('max_execution_time');
            if ($max != 0 && $timeout > $max) { // Don't bother if unlimited
                @set_time_limit($timeout);
            }
            stream_set_timeout($this->smtp_conn, $timeout, 0);
        }

        // Get any announcement
        $announce = $this->get_lines();

        if ($this->do_debug >= 2) {
            $this->edebug('SERVER -> CLIENT: ' . $announce);
        }

        return true;
    }

    /**
     * Initiate a TLS (encrypted) session.
     * @access public
     * @return bool
     */
    public function startTLS()
    {
        if (!$this->sendCommand("STARTTLS", "STARTTLS", 220)) {
            return false;
        }
        // Begin encrypted connection
        if (!stream_socket_enable_crypto(
            $this->smtp_conn,
            true,
            STREAM_CRYPTO_METHOD_TLS_CLIENT
        )
        ) {
            return false;
        }
        return true;
    }

    /**
     * Perform SMTP authentication.
     * Must be run after hello().
     * @see hello()
     * @param string $username    The user name
     * @param string $password    The password
     * @param string $authtype    The auth type (PLAIN, LOGIN, NTLM, CRAM-MD5)
     * @param string $realm       The auth realm for NTLM
     * @param string $workstation The auth workstation for NTLM
     * @access public
     * @return bool True if successfully authenticated.
     */
    public function authenticate(
        $username,
        $password,
        $authtype = 'LOGIN',
        $realm = '',
        $workstation = ''
    ) {
        if (empty($authtype)) {
            $authtype = 'LOGIN';
        }

        switch ($authtype) {
            case 'PLAIN':
                // Start authentication
                if (!$this->sendCommand('AUTH', 'AUTH PLAIN', 334)) {
                    return false;
                }
                // Send encoded username and password
                if (!$this->sendCommand(
                    'User & Password',
                    base64_encode("\0" . $username . "\0" . $password),
                    235
                )
                ) {
                    return false;
                }
                break;
            case 'LOGIN':
                // Start authentication
                if (!$this->sendCommand('AUTH', 'AUTH LOGIN', 334)) {
                    return false;
                }
                if (!$this->sendCommand("Username", base64_encode($username), 334)) {
                    return false;
                }
                if (!$this->sendCommand("Password", base64_encode($password), 235)) {
                    return false;
                }
                break;
            case 'NTLM':
                /*
                 * ntlm_sasl_client.php
                 * Bundled with Permission
                 *
                 * How to telnet in windows:
                 * http://technet.microsoft.com/en-us/library/aa995718%28EXCHG.65%29.aspx
                 * PROTOCOL Docs http://curl.haxx.se/rfc/ntlm.html#ntlmSmtpAuthentication
                 */
                require_once 'extras/ntlm_sasl_client.php';
                $temp = new stdClass();
                $ntlm_client = new ntlm_sasl_client_class;
                //Check that functions are available
                if (!$ntlm_client->Initialize($temp)) {
                    $this->error = array('error' => $temp->error);
                    if ($this->do_debug >= 1) {
                        $this->edebug(
                            'You need to enable some modules in your php.ini file: '
                            . $this->error['error']
                        );
                    }
                    return false;
                }
                //msg1
                $msg1 = $ntlm_client->TypeMsg1($realm, $workstation); //msg1

                if (!$this->sendCommand(
                    'AUTH NTLM',
                    'AUTH NTLM ' . base64_encode($msg1),
                    334
                )
                ) {
                    return false;
                }

                //Though 0 based, there is a white space after the 3 digit number
                //msg2
                $challenge = substr($this->last_reply, 3);
                $challenge = base64_decode($challenge);
                $ntlm_res = $ntlm_client->NTLMResponse(
                    substr($challenge, 24, 8),
                    $password
                );
                //msg3
                $msg3 = $ntlm_client->TypeMsg3(
                    $ntlm_res,
                    $username,
                    $realm,
                    $workstation
                );
                // send encoded username
                return $this->sendCommand('Username', base64_encode($msg3), 235);
                break;
            case 'CRAM-MD5':
                // Start authentication
                if (!$this->sendCommand('AUTH CRAM-MD5', 'AUTH CRAM-MD5', 334)) {
                    return false;
                }
                // Get the challenge
                $challenge = base64_decode(substr($this->last_reply, 4));

                // Build the response
                $response = $username . ' ' . $this->hmac($challenge, $password);

                // send encoded credentials
                return $this->sendCommand('Username', base64_encode($response), 235);
                break;
        }
        return true;
    }

    /**
     * Calculate an MD5 HMAC hash.
     * Works like hash_hmac('md5', $data, $key)
     * in case that function is not available
     * @param string $data The data to hash
     * @param string $key  The key to hash with
     * @access protected
     * @return string
     */
    protected function hmac($data, $key)
    {
        if (function_exists('hash_hmac')) {
            return hash_hmac('md5', $data, $key);
        }

        // The following borrowed from
        // http://php.net/manual/en/function.mhash.php#27225

        // RFC 2104 HMAC implementation for php.
        // Creates an md5 HMAC.
        // Eliminates the need to install mhash to compute a HMAC
        // Hacked by Lance Rushing

        $b = 64; // byte length for md5
        if (strlen($key) > $b) {
            $key = pack('H*', md5($key));
        }
        $key = str_pad($key, $b, chr(0x00));
        $ipad = str_pad('', $b, chr(0x36));
        $opad = str_pad('', $b, chr(0x5c));
        $k_ipad = $key ^ $ipad;
        $k_opad = $key ^ $opad;

        return md5($k_opad . pack('H*', md5($k_ipad . $data)));
    }

    /**
     * Check connection state.
     * @access public
     * @return bool True if connected.
     */
    public function connected()
    {
        if (!empty($this->smtp_conn)) {
            $sock_status = stream_get_meta_data($this->smtp_conn);
            if ($sock_status['eof']) {
                // the socket is valid but we are not connected
                if ($this->do_debug >= 1) {
                    $this->edebug(
                        'SMTP NOTICE: EOF caught while checking if connected'
                    );
                }
                $this->close();
                return false;
            }
            return true; // everything looks good
        }
        return false;
    }

    /**
     * Close the socket and clean up the state of the class.
     * Don't use this function without first trying to use QUIT.
     * @see quit()
     * @access public
     * @return void
     */
    public function close()
    {
        $this->error = null; // so there is no confusion
        $this->helo_rply = null;
        if (!empty($this->smtp_conn)) {
            // close the connection and cleanup
            fclose($this->smtp_conn);
            if ($this->do_debug >= 3) {
                $this->edebug('Connection: closed');
            }
            $this->smtp_conn = 0;
        }
    }

    /**
     * Send an SMTP DATA command.
     * Issues a data command and sends the msg_data to the server,
     * finializing the mail transaction. $msg_data is the message
     * that is to be send with the headers. Each header needs to be
     * on a single line followed by a <CRLF> with the message headers
     * and the message body being separated by and additional <CRLF>.
     * Implements rfc 821: DATA <CRLF>
     * @param string $msg_data Message data to send
     * @access public
     * @return bool
     */
    public function data($msg_data)
    {
        if (!$this->sendCommand('DATA', 'DATA', 354)) {
            return false;
        }

        /* The server is ready to accept data!
         * according to rfc821 we should not send more than 1000
         * including the CRLF
         * characters on a single line so we will break the data up
         * into lines by \r and/or \n then if needed we will break
         * each of those into smaller lines to fit within the limit.
         * in addition we will be looking for lines that start with
         * a period '.' and append and additional period '.' to that
         * line. NOTE: this does not count towards limit.
         */

        // Normalize the line breaks before exploding
        $msg_data = str_replace("\r\n", "\n", $msg_data);
        $msg_data = str_replace("\r", "\n", $msg_data);
        $lines = explode("\n", $msg_data);

        /* We need to find a good way to determine if headers are
         * in the msg_data or if it is a straight msg body
         * currently I am assuming rfc822 definitions of msg headers
         * and if the first field of the first line (':' separated)
         * does not contain a space then it _should_ be a header
         * and we can process all lines before a blank "" line as
         * headers.
         */

        $field = substr($lines[0], 0, strpos($lines[0], ':'));
        $in_headers = false;
        if (!empty($field) && !strstr($field, ' ')) {
            $in_headers = true;
        }

        //RFC 2822 section 2.1.1 limit
        $max_line_length = 998;

        foreach ($lines as $line) {
            $lines_out = null;
            if ($line == '' && $in_headers) {
                $in_headers = false;
            }
            // ok we need to break this line up into several smaller lines
            while (strlen($line) > $max_line_length) {
                $pos = strrpos(substr($line, 0, $max_line_length), ' ');

                // Patch to fix DOS attack
                if (!$pos) {
                    $pos = $max_line_length - 1;
                    $lines_out[] = substr($line, 0, $pos);
                    $line = substr($line, $pos);
                } else {
                    $lines_out[] = substr($line, 0, $pos);
                    $line = substr($line, $pos + 1);
                }

                /* If processing headers add a LWSP-char to the front of new line
                 * rfc822 on long msg headers
                 */
                if ($in_headers) {
                    $line = "\t" . $line;
                }
            }
            $lines_out[] = $line;

            // send the lines to the server
            while (list(, $line_out) = @each($lines_out)) {
                if (strlen($line_out) > 0) {
                    if (substr($line_out, 0, 1) == '.') {
                        $line_out = '.' . $line_out;
                    }
                }
                $this->client_send($line_out . self::CRLF);
            }
        }

        // Message data has been sent, complete the command
        return $this->sendCommand('DATA END', '.', 250);
    }

    /**
     * Send an SMTP HELO or EHLO command.
     * Used to identify the sending server to the receiving server.
     * This makes sure that client and server are in a known state.
     * Implements from RFC 821: HELO <SP> <domain> <CRLF>
     * and RFC 2821 EHLO.
     * @param string $host The host name or IP to connect to
     * @access public
     * @return bool
     */
    public function hello($host = '')
    {
        // Try extended hello first (RFC 2821)
        if (!$this->sendHello('EHLO', $host)) {
            if (!$this->sendHello('HELO', $host)) {
                return false;
            }
        }

        return true;
    }

    /**
     * Send an SMTP HELO or EHLO command.
     * Low-level implementation used by hello()
     * @see hello()
     * @param string $hello The HELO string
     * @param string $host  The hostname to say we are
     * @access protected
     * @return bool
     */
    protected function sendHello($hello, $host)
    {
        $noerror = $this->sendCommand($hello, $hello . ' ' . $host, 250);
        $this->helo_rply = $this->last_reply;
        return $noerror;
    }

    /**
     * Send an SMTP MAIL command.
     * Starts a mail transaction from the email address specified in
     * $from. Returns true if successful or false otherwise. If True
     * the mail transaction is started and then one or more recipient
     * commands may be called followed by a data command.
     * Implements rfc 821: MAIL <SP> FROM:<reverse-path> <CRLF>
     * @param string $from Source address of this message
     * @access public
     * @return bool
     */
    public function mail($from)
    {
        $useVerp = ($this->do_verp ? ' XVERP' : '');
        return $this->sendCommand(
            'MAIL FROM',
            'MAIL FROM:<' . $from . '>' . $useVerp,
            250
        );
    }

    /**
     * Send an SMTP QUIT command.
     * Closes the socket if there is no error or the $close_on_error argument is true.
     * Implements from rfc 821: QUIT <CRLF>
     * @param bool $close_on_error Should the connection close if an error occurs?
     * @access public
     * @return bool
     */
    public function quit($close_on_error = true)
    {
        $noerror = $this->sendCommand('QUIT', 'QUIT', 221);
        $e = $this->error; //Save any error
        if ($noerror or $close_on_error) {
            $this->close();
            $this->error = $e; //Restore any error from the quit command
        }
        return $noerror;
    }

    /**
     * Send an SMTP RCPT command.
     * Sets the TO argument to $to.
     * Returns true if the recipient was accepted false if it was rejected.
     * Implements from rfc 821: RCPT <SP> TO:<forward-path> <CRLF>
     * @param string $to The address the message is being sent to
     * @access public
     * @return bool
     */
    public function recipient($to)
    {
        return $this->sendCommand(
            'RCPT TO ',
            'RCPT TO:<' . $to . '>',
            array(250, 251)
        );
    }

    /**
     * Send an SMTP RSET command.
     * Abort any transaction that is currently in progress.
     * Implements rfc 821: RSET <CRLF>
     * @access public
     * @return bool True on success.
     */
    public function reset()
    {
        return $this->sendCommand('RSET', 'RSET', 250);
    }

    /**
     * Send a command to an SMTP server and check its return code.
     * @param string $command       The command name - not sent to the server
     * @param string $commandstring The actual command to send
     * @param int|array $expect     One or more expected integer success codes
     * @access protected
     * @return bool True on success.
     */
    protected function sendCommand($command, $commandstring, $expect)
    {
        if (!$this->connected()) {
            $this->error = array(
                "error" => "Called $command without being connected"
            );
            return false;
        }
        $this->client_send($commandstring . self::CRLF);

        $reply = $this->get_lines();
        $code = substr($reply, 0, 3);

        if ($this->do_debug >= 2) {
            $this->edebug('SERVER -> CLIENT: ' . $reply);
        }

        if (!in_array($code, (array)$expect)) {
            $this->last_reply = null;
            $this->error = array(
                "error" => "$command command failed",
                "smtp_code" => $code,
                "detail" => substr($reply, 4)
            );
            if ($this->do_debug >= 1) {
                $this->edebug(
                    'SMTP ERROR: ' . $this->error['error'] . ': ' . $reply
                );
            }
            return false;
        }

        $this->last_reply = $reply;
        $this->error = null;
        return true;
    }

    /**
     * Send an SMTP SAML command.
     * Starts a mail transaction from the email address specified in $from.
     * Returns true if successful or false otherwise. If True
     * the mail transaction is started and then one or more recipient
     * commands may be called followed by a data command. This command
     * will send the message to the users terminal if they are logged
     * in and send them an email.
     * Implements rfc 821: SAML <SP> FROM:<reverse-path> <CRLF>
     * @param string $from The address the message is from
     * @access public
     * @return bool
     */
    public function sendAndMail($from)
    {
        return $this->sendCommand("SAML", "SAML FROM:$from", 250);
    }

    /**
     * Send an SMTP VRFY command.
     * @param string $name The name to verify
     * @access public
     * @return bool
     */
    public function verify($name)
    {
        return $this->sendCommand("VRFY", "VRFY $name", array(250, 251));
    }

    /**
     * Send an SMTP NOOP command.
     * Used to keep keep-alives alive, doesn't actually do anything
     * @access public
     * @return bool
     */
    public function noop()
    {
        return $this->sendCommand("NOOP", "NOOP", 250);
    }

    /**
     * Send an SMTP TURN command.
     * This is an optional command for SMTP that this class does not support.
     * This method is here to make the RFC821 Definition
     * complete for this class and __may__ be implemented in future
     * Implements from rfc 821: TURN <CRLF>
     * @access public
     * @return bool
     */
    public function turn()
    {
        $this->error = array(
            'error' => 'The SMTP TURN command is not implemented'
        );
        if ($this->do_debug >= 1) {
            $this->edebug('SMTP NOTICE: ' . $this->error['error']);
        }
        return false;
    }

    /**
     * Send raw data to the server.
     * @param string $data The data to send
     * @access public
     * @return int|bool The number of bytes sent to the server or FALSE on error
     */
    public function client_send($data)
    {
        if ($this->do_debug >= 1) {
            $this->edebug("CLIENT -> SERVER: $data");
        }
        return fwrite($this->smtp_conn, $data);
    }

    /**
     * Get the latest error.
     * @access public
     * @return array
     */
    public function getError()
    {
        return $this->error;
    }

    /**
     * Get the last reply from the server.
     * @access public
     * @return string
     */
    public function getLastReply()
    {
        return $this->last_reply;
    }

    /**
     * Read the SMTP server's response.
     * Either before eof or socket timeout occurs on the operation.
     * With SMTP we can tell if we have more lines to read if the
     * 4th character is '-' symbol. If it is a space then we don't
     * need to read anything else.
     * @access protected
     * @return string
     */
    protected function get_lines()
    {
        $data = '';
        $endtime = 0;
        // If the connection is bad, give up now
        if (!is_resource($this->smtp_conn)) {
            return $data;
        }
        stream_set_timeout($this->smtp_conn, $this->Timeout);
        if ($this->Timelimit > 0) {
            $endtime = time() + $this->Timelimit;
        }
        while (is_resource($this->smtp_conn) && !feof($this->smtp_conn)) {
            $str = @fgets($this->smtp_conn, 515);
            if ($this->do_debug >= 4) {
                $this->edebug("SMTP -> get_lines(): \$data was \"$data\"");
                $this->edebug("SMTP -> get_lines(): \$str is \"$str\"");
            }
            $data .= $str;
            if ($this->do_debug >= 4) {
                $this->edebug("SMTP -> get_lines(): \$data is \"$data\"");
            }
            // if 4th character is a space, we are done reading, break the loop
            if (substr($str, 3, 1) == ' ') {
                break;
            }
            // Timed-out? Log and break
            $info = stream_get_meta_data($this->smtp_conn);
            if ($info['timed_out']) {
                if ($this->do_debug >= 4) {
                    $this->edebug(
                        'SMTP -> get_lines(): timed-out (' . $this->Timeout . ' sec)'
                    );
                }
                break;
            }
            // Now check if reads took too long
            if ($endtime) {
                if (time() > $endtime) {
                    if ($this->do_debug >= 4) {
                        $this->edebug(
                            'SMTP -> get_lines(): timelimit reached ('
                            . $this->Timelimit . ' sec)'
                        );
                    }
                    break;
                }
            }
        }
        return $data;
    }

    /**
     * Enable or disable VERP address generation.
     * @param bool $enabled
     */
    public function setVerp($enabled = false)
    {
        $this->do_verp = $enabled;
    }

    /**
     * Get VERP address generation mode.
     * @return bool
     */
    public function getVerp()
    {
        return $this->do_verp;
    }

    /**
     * Set debug output method.
     * @param string $method The function/method to use for debugging output.
     */
    public function setDebugOutput($method = 'echo')
    {
        $this->Debugoutput = $method;
    }

    /**
     * Get debug output method.
     * @return string
     */
    public function getDebugOutput()
    {
        return $this->Debugoutput;
    }

    /**
     * Set debug output level.
     * @param int $level
     */
    public function setDebugLevel($level = 0)
    {
        $this->do_debug = $level;
    }

    /**
     * Get debug output level.
     * @return int
     */
    public function getDebugLevel()
    {
        return $this->do_debug;
    }

    /**
     * Set SMTP timeout.
     * @param int $timeout
     */
    public function setTimeout($timeout = 0)
    {
        $this->Timeout = $timeout;
    }

    /**
     * Get SMTP timeout.
     * @return int
     */
    public function getTimeout()
    {
        return $this->Timeout;
    }
}

In your if statement at the end you only account for the cases when the e-mail was sent successfully and if there are any validation errors. You don't account for if there are no validation errors but the mail function failed

if ($sent) {
    // No validation errors and email sent successfully
}
else {
    if ($hasErrors) {
        // Validation errors
    }
    else {
        // sending of email with mail function failed
    }
}

Consider using some easy to use & stable classes such as PHPMailer or Zend libraries.

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