Set an IMAP TLS Client Certificate from a PFX File

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Demonstrates the Chilkat Imap.SetSslClientCertPfx method, which supplies a TLS client certificate and private key from a PKCS #12/PFX file. The first argument is the .pfx or .p12 file path and the second is its password. Call it before connecting.

Note: The certificate path is relative to the application's current working directory. Supply the path to your own certificate file.

Background: A PFX (PKCS #12) file bundles a certificate together with its private key in a single password-protected file — the format Windows and many corporate PKI tools export. This is the counterpart to SetSslClientCertPem: use it when your credentials are packaged as one .pfx rather than as separate PEM files.

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bool success = false;

//  Demonstrates the Imap.SetSslClientCertPfx method, which supplies a TLS client certificate
//  and private key from a PKCS #12/PFX file.  The 1st argument is the .pfx/.p12 file path and
//  the 2nd is its password.  It must be called before connecting.

Chilkat.Imap imap = new Chilkat.Imap();

imap.Ssl = true;
imap.Port = 993;

//  The PFX password is not hard-coded in source.  Insert code here to obtain it from an
//  interactive prompt, environment variable, or a secrets vault.
string pfxPassword;

//  Provide the PFX client certificate BEFORE connecting.
success = imap.SetSslClientCertPfx("qa_data/client.pfx",pfxPassword);
if (success == false) {
    Debug.WriteLine(imap.LastErrorText);
    return;
}

success = imap.Connect("imap.example.com");
if (success == false) {
    Debug.WriteLine(imap.LastErrorText);
    return;
}

success = imap.Login("user@example.com","myPassword");
if (success == false) {
    Debug.WriteLine(imap.LastErrorText);
    return;
}

success = imap.Disconnect();
if (success == false) {
    Debug.WriteLine(imap.LastErrorText);
    return;
}