Visual FoxPro

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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LOCAL lnSuccess
LOCAL loMailman

lnSuccess = 0

*  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.

loMailman = CreateObject('Chilkat.MailMan')

*  Configure the SMTP server connection.
loMailman.SmtpHost = "smtp.example.com"
loMailman.SmtpPort = 465
loMailman.SmtpSsl = 1
loMailman.SmtpUsername = "user@example.com"
loMailman.SmtpPassword = "myPassword"

*  Load the client certificate directly from a PFX file.
lnSuccess = loMailman.SetSslClientCertPfx("qa_data/certs/client.pfx","pfx_password")
IF (lnSuccess = 0) THEN
    ? loMailman.LastErrorText
    RELEASE loMailman
    CANCEL
ENDIF

lnSuccess = loMailman.VerifySmtpLogin()
IF (lnSuccess = 0) THEN
    ? loMailman.LastErrorText
    RELEASE loMailman
    CANCEL
ENDIF

? "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.

RELEASE loMailman