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(PowerBuilder) POP3 Read S/MIME Encrypted Email

Read S/MIME encrypted email.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_Mailman
integer li_Success
oleobject loo_Bundle
integer i
oleobject loo_Email

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// The mailman object is used for receiving (POP3) 
// and sending (SMTP) email.
loo_Mailman = create oleobject
li_rc = loo_Mailman.ConnectToNewObject("Chilkat_9_5_0.MailMan")
if li_rc < 0 then
    destroy loo_Mailman
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// Set the POP3 server's hostname
loo_Mailman.MailHost = "pop.someMailServer.com"

// Set the POP3 login/password.
loo_Mailman.PopUsername = "myLogin"
loo_Mailman.PopPassword = "myPassword"

// If running on Microsoft Windows, the Chilkat mailman
// will automatically search the registry-based certificate stores
// for matching certificates and private keys required for
// decryption.  However, on Linux, MAX OS X, and other
// operating systems, no such thing exists.  Therefore, you'll 
// need to specify one or more PFX (.p12 / .pfx) files as
// sources for locating the certs required for decyrption.
li_Success = loo_Mailman.AddPfxSourceFile("/pfxFiles/certs_and_keys_1.pfx","pfxPassword1")
if li_Success <> 1 then
    Write-Debug loo_Mailman.LastErrorText
    destroy loo_Mailman
    return
end if

li_Success = loo_Mailman.AddPfxSourceFile("/pfxFiles/certs_and_keys_2.pfx","pfxPassword2")
if li_Success <> 1 then
    Write-Debug loo_Mailman.LastErrorText
    destroy loo_Mailman
    return
end if

// ...
// Note: On MS Windows, it is not required to provide PFX sources
// if the needed certs and private keys are already installed
// on the system (in the registry-based certificate stores).

// Copy the all email from the user's POP3 mailbox 
// into a bundle object.  The email remains on the server.
loo_Bundle = loo_Mailman.CopyMail()
if loo_Mailman.LastMethodSuccess = 0 then
    Write-Debug loo_Mailman.LastErrorText
    destroy loo_Mailman
    return
end if

// S/MIME security envelopes are automatically "unwrapped" 
// when a message is retrieved from the server. Signed emails are automatically verified, and 
// encrypted emails are automatically decrypted, restoring the email to the original state before 
// signing and/or encrypting. Information about the signing and encrypting certificates can be 
// retrieved from the Email object (methods: GetSignedByCert, GetEncryptedByCert; 
// properties: SignedBy, EncryptedBy, SignaturesValid, Decrypted, ReceivedSigned, 
// ReceivedEncrypted).

// Loop over the bundle, 
i = 0
do while i < loo_Bundle.MessageCount

    loo_Email = loo_Bundle.GetEmail(i)

    Write-Debug loo_Email.From
    Write-Debug loo_Email.Subject

    // At this point, if the email was signed and/or encrypted, it is already "unwrapped", i.e.
    // the email is already decrypted and in a state as if it were never signed or encrypted.
    // You may check to see if the email was received encrypted or signed, and if so,
    // whether it was successfully unwrapped and who signed or encrypted it:
    if loo_Email.ReceivedEncrypted = 1 then

        Write-Debug "This email was encrypted when received."
        if loo_Email.Decrypted = 1 then
            Write-Debug "This email was successfully decrypted.  It was encrypted by:"
            Write-Debug loo_Email.EncryptedBy
        else
            Write-Debug "This email was not decrypted."
        end if

    end if

    if loo_Email.ReceivedSigned = 1 then

        Write-Debug "This email was signed when received."
        if loo_Email.SignaturesValid = 1 then
            Write-Debug "The signature was verified.  It was signed by:"
            Write-Debug loo_Email.SignedBy
        else
            Write-Debug "The signature verification failed."
        end if

    end if

    // The email's body, HTML body, attachments, etc.
    // are decrypted and available just like any non-encrypted email.

    Write-Debug "--"
    destroy loo_Email

    i = i + 1
loop

destroy loo_Bundle


destroy loo_Mailman

 

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