Using a .cer Certificate File for Encrypted Email

Sends an encrypted email using the recipient's digital certificate from a .cer file.

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<?php

//  The mailman object is used for sending and receiving email.
$mailman = new COM("Chilkat.MailMan2");

//  Any string argument automatically begins the 30-day trial.
$success = $mailman->UnlockComponent('30-day trial');
if ($success != true) {
    print 'Component unlock failed' . "\n";
    exit;
}

//  Set the SMTP server.
$mailman->SmtpHost = 'smtp.comcast.net';

//  Load the .cer file into a certificate object:
$cert = new COM("Chilkat.Cert");
$success = $cert->LoadFromFile('cknotes.cer');
if ($success != true) {
    print $cert->lastErrorText() . "\n";
    exit;
}

//  Create a new email object
$email = new COM("Chilkat.Email2");

$email->Subject = 'This email is encrypted';
$email->Body = 'This is a digitally encrypted mail';
$email->From = 'Chilkat Support <support@chilkatsoft.com>';
$email->AddTo('Chilkat Blog','admin@cknotes.com');

//  Indicate that the email is to be sent encrypted.
$email->SendEncrypted = true;

//  Specify the certificate:
$email->SetEncryptCert($cert);

$success = $mailman->SendEmail($email);
if ($success != true) {
    print $mailman->lastErrorText() . "\n";
}
else {
    print 'Mail Sent!' . "\n";
}

?>