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Set a TLS Client Certificate for IMAP

Demonstrates the Chilkat Imap.SetSslClientCert method, which supplies a client certificate for TLS client-certificate authentication. The only argument is a Cert object that must provide access to its private key. Call it before connecting. This example loads the certificate from a PFX file.

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

Background: Most IMAP servers authenticate with a username and password only. A few high-security deployments additionally require mutual TLS, where the client presents its own certificate during the handshake. Because that happens as part of connecting, the certificate must be set before Connect — setting it afterward has no effect on the already-established connection.

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Local $bSuccess = False

;  Demonstrates the Imap.SetSslClientCert method, which supplies a client certificate for TLS
;  client-certificate authentication.  The only argument is a Cert object.  It must be called
;  before connecting.

$oImap = ObjCreate("Chilkat.Imap")

$oImap.Ssl = True
$oImap.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.
Local $sPfxPassword

;  Load the client certificate (and its private key) from a PFX file.
$oCert = ObjCreate("Chilkat.Cert")
$bSuccess = $oCert.LoadPfxFile("qa_data/client.pfx",$sPfxPassword)
If ($bSuccess = False) Then
    ConsoleWrite($oCert.LastErrorText & @CRLF)
    Exit
EndIf

;  Provide the client certificate BEFORE connecting.
$bSuccess = $oImap.SetSslClientCert($oCert)
If ($bSuccess = False) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

$bSuccess = $oImap.Connect("imap.example.com")
If ($bSuccess = False) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

$bSuccess = $oImap.Login("user@example.com","myPassword")
If ($bSuccess = False) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

$bSuccess = $oImap.Disconnect()
If ($bSuccess = False) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf