Question

I’m trying to send a file as an email attachment, but for some reason if the file is > 100k then the email doesn’t go through, even though I get the email sent message.
It may also be a limit on the attachments in IIS smtp setting, but when I unchecked the Limit session size and limit message size options, it didn’t change anything. I may have to restart the server tonight…

I don’t know if it’s a php.ini setting, or what.

<?
$path_of_attached_file = "Images/marsbow_pacholka_big.jpg";

require 'include/PHPMailer_5.2.1/class.phpmailer.php';
try {
    $mail = new PHPMailer(true); //New instance, with exceptions enabled

    $body = $message; //"<p><b>Test</b> another test 3.</p>";

    $mail->AddReplyTo("[e-mail]","Admin");

    $mail->From     = "[e-mail]";
    $mail->FromName = "Admin";

    $mail->AddAddress($to);
    $mail->Subject  = "First PHPMailer Message";
    $mail->AltBody  = "To view the message, please use an HTML compatible email viewer!"; // optional, comment out and test
    $mail->WordWrap = 80; // set word wrap

    $mail->MsgHTML($body);

    $mail->IsHTML(true); // send as HTML
    if($attach){
        $mail->AddAttachment($path_of_attached_file);
    }

    $mail->Send();
    echo 'Message has been sent.';
} catch (phpmailerException $e) {
    echo $e->errorMessage();
}
?>

Answer 1

I might be wrong because I don’t use IIS but the code you provided would actually use a native MTA not SMTP. As far as I know you have to use the IsSMTP() method to let PHPMailer know that you intend to use SMTP.

Something like this:

<?
$path_of_attached_file = "Images/marsbow_pacholka_big.jpg";

require 'include/PHPMailer_5.2.1/class.phpmailer.php';
try {
    $mail = new PHPMailer(true); //New instance, with exceptions enabled

    $body = $message; //"<p><b>Test</b> another test 3.</p>";
    $mail->IsSMTP(); // telling the class to use SMTP
    $mail->Host       = "mail.yourdomain.com"; // SMTP server
    $mail->SMTPDebug  = 2;
    $mail->SMTPAuth   = true;                  // enable SMTP authentication
    $mail->Host       = "mail.yourdomain.com"; // sets the SMTP server
    $mail->Port       = 25;                    // set the SMTP port 
    $mail->Username   = "yourname@yourdomain"; // SMTP account username
    $mail->Password   = "yourpassword";        // SMTP account password 

    $mail->AddReplyTo("[e-mail]","Admin");

    $mail->From     = "[e-mail]";
    $mail->FromName = "Admin";

    $mail->AddAddress($to);
    $mail->Subject  = "First PHPMailer Message";
    $mail->AltBody  = "To view the message, please use an HTML compatible email viewer!"; // optional, comment out and test
    $mail->WordWrap = 80; // set word wrap

    $mail->MsgHTML($body);

    $mail->IsHTML(true); // send as HTML
    if($attach){
        $mail->AddAttachment($path_of_attached_file);
    }

    $mail->Send();
    echo 'Message has been sent.';
} catch (phpmailerException $e) {
    echo $e->errorMessage();
}
?>