Lua

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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Lua

local chilkat = require("chilkat")

-- 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.

local mailman = chilkat.MailMan.new()

-- Configure the SMTP server connection.
mailman.smtp_host = "smtp.example.com"
mailman.smtp_port = 465
mailman.smtp_ssl = true
mailman.smtp_username = "user@example.com"
mailman.smtp_password = "myPassword"

-- Load the client certificate directly from a PFX file.
local success = mailman:set_ssl_client_cert_pfx("qa_data/certs/client.pfx", "pfx_password")
if not success then
    print(mailman.last_error_text)
    return
end

success = mailman:verify_smtp_login()
if not success then
    print(mailman.last_error_text)
    return
end

print("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.