Xbase++

Send Signed Email using PFX File

Demonstrates how to send a signed email using a digital certificate w/ private key stored in a PFX file. Xbase++

LOCAL nSuccess
LOCAL oMailman
LOCAL oEmail

nSuccess := 0

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

//  The mailman object is used for sending and receiving email.
oMailman := CreateObject("Chilkat.MailMan")

//  Set the SMTP server.
oMailman:SmtpHost := "smtp.mymailserver.com"

//  Create a new email object
oEmail := CreateObject("Chilkat.Email")

oEmail:Subject := "This email is signed"
oEmail:Body := "This is a digitally signed mail"
oEmail:From := "Chilkat Admin <admin@chilkatsoft.com>"
nSuccess := oEmail:AddTo("Chilkat Support", "support@chilkatsoft.com")

//  Indicate that the email should be sent signed.
oEmail:SendSigned := 1

//  Tell the mailman to use a PFX file as a source for locating
//  the certificate and private key required for signing.
//  The certificate chosen for signing will be the one that
//  matches the sender's email address, which also has
//  a private key.  All intermediate certs in the chain of 
//  authentication, up to and including the root, will
//  be included in the signature.
nSuccess := oMailman:AddPfxSourceFile("/pfx_files/chilkatsoft_secret.pfx", "secret")
IF (nSuccess != 1)
    ? oMailman:LastErrorText
    oMailman:destroy()
    oEmail:destroy()
    RETURN
ENDIF

//  Signed email can be sent in two different ways.  
//  In a multipart/signed email, the signature is attached as a separate MIME part.
//  In an opaque email (signedData) the content of the email is encapsulated within the signature
//  and the email is sent as "application/pkcs7-mime". 
//  Either should be fine, but some receiving systems might require one or the other..
oMailman:OpaqueSigning := 0

//  Send a signed email.
nSuccess := oMailman:SendEmail(oEmail)
IF (nSuccess != 1)
    ? oMailman:LastErrorText
ELSE
    //  The LastErrorText property provides information
    //  even when successful.
    ? oMailman:LastErrorText
    ? "Mail Sent!"
ENDIF

oMailman:destroy()
oEmail:destroy()