PowerShell

Use a PFX TLS Client Certificate

Demonstrates the Chilkat MailMan.SetSslClientCertPfx method, which sets the client-side certificate for SSL/TLS connections, loading it from a PFX/PKCS#12 file. The first argument is the path to the PFX file and the second is its password. This example loads a client certificate directly from a PFX.

Background: This is the convenience form of SetSslClientCert: rather than loading a Cert object first, you point straight at the PFX file and password. A PFX (PKCS#12) bundles the certificate with its private key — exactly what mutual TLS requires, since the client must prove possession of the key during the handshake. It is the usual client-credential format on Windows.

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Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

#  Demonstrates the MailMan.SetSslClientCertPfx method, which sets the client-side
#  certificate for SSL/TLS connections, loading it from a PFX/PKCS#12 file.  The 1st argument
#  is the PFX path and the 2nd is the PFX password.

$mailman = New-Object Chilkat.MailMan

#  Configure the SMTP server connection.
$mailman.SmtpHost = "smtp.example.com"
$mailman.SmtpPort = 465
$mailman.SmtpSsl = $true
$mailman.SmtpUsername = "user@example.com"
$mailman.SmtpPassword = "myPassword"

#  Load the client certificate directly from a PFX file.
$success = $mailman.SetSslClientCertPfx("qa_data/certs/client.pfx","pfx_password")
if ($success -eq $false) {
    $($mailman.LastErrorText)
    exit
}

$success = $mailman.VerifySmtpLogin()
if ($success -eq $false) {
    $($mailman.LastErrorText)
    exit
}

$("Connected using a PFX TLS client certificate.")

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