Changing form php sendmail to SMTP? - php

Question

We created this contact form a long time ago, but we have recently had issues with our sendmail, now i need to change this to use SMTP and that i haven't done before. Is it much work or just a matter of changing few lines? Any tips are welcome.
You can see our whole script here, it's very simple...
<?php
if(!$_POST) exit;
function tommus_email_validate($email) {
return filter_var($email, FILTER_VALIDATE_EMAIL) && preg_match('/#.+\./', $email);
}
$name = $_POST['name']; $email = $_POST['email']; $phone = $_POST['phone']; $comments = $_POST['comments'];
if(trim($name) == '') {
exit('<div class="error_message">You must enter your name.</div>');
} else if(trim($name) == 'Name') {
exit('<div class="error_message">You must enter your name.</div>');
} else if(trim($email) == '') {
exit('<div class="error_message">Please enter a valid email address.</div>');
} else if(!tommus_email_validate($email)) {
exit('<div class="error_message">You have entered an invalid e-mail address.</div>');
} else if(trim($comments) == 'Tell us what you think!') {
exit('<div class="error_message">Please enter your message.</div>');
} else if(trim($comments) == '') {
exit('<div class="error_message">Please enter your message.</div>');
} else if( strpos($comments, 'href') !== false ) {
exit('<div class="error_message">Please leave links as plain text.</div>');
} else if( strpos($comments, '[url') !== false ) {
exit('<div class="error_message">Please leave links as plain text.</div>');
} if(get_magic_quotes_gpc()) { $comments = stripslashes($comments); }
$address = 'hello#basicagency.com';
$e_subject = 'You\'ve been contacted by ' . $name . '.';
$e_body = "You have been contacted by $name from your contact form, their additional message is as follows." . "\r\n" . "\r\n";
$e_content = "\"$comments\"" . "\r\n" . "\r\n";
$e_reply = "You can contact $name via email, $email (or by phone if supplied: $phone)";
$msg = wordwrap( $e_body . $e_content . $e_reply, 70 );
$headers = "From: $email" . "\r\n";
$headers .= "Reply-To: $email" . "\r\n";
$headers .= "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type: text/plain; charset=utf-8" . "\r\n";
$headers .= "Content-Transfer-Encoding: quoted-printable" . "\r\n";
if(mail($address, $e_subject, $msg, $headers)) {
echo "<fieldset><div id='success_page'><p>Thank you $name, your message has been submitted to us.</p></div></fieldset>";
}

Answer 1

You can use a package for handling e-mails, such as PHPMailer, just use the included methods to build your message, instead of the $headers variable. Once you have downloaded PHPMailer and have it somewhere accessable by your script, replace this:
$headers = "From: $email" . "\r\n";
$headers .= "Reply-To: $email" . "\r\n";
$headers .= "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type: text/plain; charset=utf-8" . "\r\n";
$headers .= "Content-Transfer-Encoding: quoted-printable" . "\r\n";
if(mail($address, $e_subject, $msg, $headers)) {
echo "<fieldset><div id='success_page'><p>Thank you $name, your message has been submitted to us.</p></div></fieldset>";
}
with something like this:
require '/path/to/PHPMailer/PHPMailerAutoload.php';
$mail = new PHPMailer;
$mail->isSMTP();
// SMTP server details
$mail->Host = "mail.example.com";
$mail->Port = 25;
$mail->SMTPAuth = true;
$mail->Username = "yourname#example.com";
$mail->Password = "yourpassword";
// message details
$mail->setFrom($email, $email);
$mail->addReplyTo($email, $email);
$mail->addAddress($address, $address);
$mail->Subject = $e_subject;
$mail->Body = $msg;
// send
if($mail->send()) {
echo "<fieldset><div id='success_page'><p>Thank you $name, your message has been submitted to us.</p></div></fieldset>";
}
else{
echo 'Mailer Error: ' . $mail->ErrorInfo;
}