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PHP ActiveX Examples

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(PHP ActiveX) POP3 Verify Signed (S/MIME) Email

Demonstrates how to download and verify digitally signed S/MIME email.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

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

$mailman = new COM("Chilkat_9_5_0.MailMan");

// Set the POP3 server's hostname
$mailman->MailHost = 'pop.someMailServer.com';

// Set the POP3 login/password.
$mailman->PopUsername = 'myLogin';
$mailman->PopPassword = 'myPassword';

// sa is a Chilkat_9_5_0.StringArray
$sa = $mailman->GetUidls();
if ($mailman->LastMethodSuccess == 0) {
    print $mailman->LastErrorText . "\n";
    exit;
}

$i = 0;
while ($i < $sa->Count) {

    $uidl = $sa->getString($i);

    // email is a Chilkat_9_5_0.Email
    $email = $mailman->FetchEmail($uidl);
    if ($mailman->LastMethodSuccess == 0) {
        print $mailman->LastErrorText . "\n";

        exit;
    }

    print $email->From . "\n";
    print $email->Subject . "\n";

    // The security layers of signed and/or encrypted emails
    // are automatically "unwrapped" when loaded into
    // a Chilkat email object.
    // An application only needs to check to see if an email
    // was received signed or encrypted, and then examine
    // the success/failure.  For example:
    if ($email->ReceivedSigned == 1) {

        print 'This email was signed.' . "\n";

        // Check to see if the signatures were verified.
        if ($email->SignaturesValid == 1) {
            print 'Digital signature(s) verified.' . "\n";
            print 'Signer: ' . $email->SignedBy . "\n";

            // The certificate used for signing may be obtained
            // by calling email.GetSignedByCert.

            // cert is a Chilkat_9_5_0.Cert
            $cert = $email->GetSignedByCert();
            if ($email->LastMethodSuccess == 0) {
                print 'Failed to get signing certificate object.' . "\n";
            }
            else {
                print 'Signing cert: ' . $cert->SubjectCN . "\n";

            }

        }
        else {
            print 'Digital signature verification failed.' . "\n";
        }

    }

    $i = $i + 1;
}

$mailman->Pop3EndSession();

?>

 

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