PHP Extension

Add a PFX Source to MailMan for Decryption

Demonstrates the Chilkat MailMan.AddPfxSourceFile method, which adds a PFX/PKCS#12 file to the MailMan object's internal list of sources used for locating certificates and private keys — for example, to decrypt S/MIME email downloaded from the server. The second argument is the PFX password. This example configures a POP3 connection and registers a PFX source.

Background: When MailMan downloads an encrypted (S/MIME) message, it needs the recipient's private key to decrypt it. On Windows and macOS the OS certificate stores are searched automatically, but when the key lives in a standalone PFX file — common on Linux or in server deployments — AddPfxSourceFile tells MailMan where to find it. A PFX bundles the certificate and its private key in one password-protected file.

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PHP Extension

<?php

include("chilkat.php");

$success = false;

//  Demonstrates the MailMan.AddPfxSourceFile method, which adds a PFX/PKCS#12 file to the
//  MailMan object's internal list of sources used for locating certificates and private
//  keys (for example, to decrypt downloaded S/MIME email).  The 2nd argument is the PFX
//  password.

$mailman = new CkMailMan();

//  Configure the POP3 server connection.
$mailman->put_MailHost('pop.example.com');
$mailman->put_MailPort(995);
$mailman->put_PopSsl(true);
$mailman->put_PopUsername('user@example.com');
$mailman->put_PopPassword('myPassword');

//  Provide a PFX so that encrypted emails downloaded from the server can be decrypted.

$success = $mailman->AddPfxSourceFile('qa_data/certs/decryption.pfx','pfx_password');
if ($success == false) {
    print $mailman->lastErrorText() . "\n";
    exit;
}

print 'Added the PFX certificate/private-key source.' . "\n";

//  Note: The path "qa_data/certs/decryption.pfx" is a relative local filesystem path,
//  relative to the current working directory of the running application.

?>