Delphi ActiveX

Set an IMAP TLS Client Certificate from a PFX File

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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var
success: Integer;
imap: TChilkatImap;
pfxPassword: WideString;

begin
success := 0;

//  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.

imap := TChilkatImap.Create(Self);

imap.Ssl := 1;
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.

//  Provide the PFX client certificate BEFORE connecting.
success := imap.SetSslClientCertPfx('qa_data/client.pfx',pfxPassword);
if (success = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

success := imap.Connect('imap.example.com');
if (success = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;
success := imap.Login('user@example.com','myPassword');
if (success = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

success := imap.Disconnect();
if (success = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;