(Perl) Sending S/MIME Encrypted Email

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

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# The mailman object is used for sending and receiving email.
$mailman = chilkat::CkMailMan->new();

# Set the SMTP server.
$mailman->put_SmtpHost("smtp.comcast.net");

# Load the .cer file into a certificate object.
# When sending S/MIME encrypted email, it is the recipient's
# certificate that is used for encryption.  Only the public key
# is needed to encrypt.  The recipient is the only
# one possessing the private key, and therefore is the only
# one able to decrypt.
$cert = chilkat::CkCert->new();
$success = $cert->LoadFromFile("cknotes.cer");
if ($success != 1) {
    print $cert->lastErrorText() . "\r\n";
    exit;
}

# Create a new email object
$email = chilkat::CkEmail->new();

$email->put_Subject("This email is encrypted");
$email->put_Body("This is a digitally encrypted mail");
$email->put_From('Chilkat Support <support@chilkatsoft.com>');
$success = $email->AddTo("Chilkat Blog",'admin@cknotes.com');

# Indicate that the email is to be sent encrypted.
$email->put_SendEncrypted(1);

# Specify the certificate to be used for encryption.
$success = $email->SetEncryptCert($cert);

$success = $mailman->SendEmail($email);
if ($success != 1) {
    print $mailman->lastErrorText() . "\r\n";
}
else {
    print "Mail Sent!" . "\r\n";
}