Classic ASP

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. Classic ASP

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<%
success = 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.
set mailman = Server.CreateObject("Chilkat.MailMan")

'  Set the SMTP server.
mailman.SmtpHost = "smtp.mymailserver.com"

'  Create a new email object
set email = Server.CreateObject("Chilkat.Email")

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

'  Indicate that the email should be sent signed.
email.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.
success = mailman.AddPfxSourceFile("/pfx_files/chilkatsoft_secret.pfx","secret")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( mailman.LastErrorText) & "</pre>"
    Response.End
End If

'  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..
mailman.OpaqueSigning = 0

'  Send a signed email.
success = mailman.SendEmail(email)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( mailman.LastErrorText) & "</pre>"
Else
    '  The LastErrorText property provides information
    '  even when successful.
    Response.Write "<pre>" & Server.HTMLEncode( mailman.LastErrorText) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( "Mail Sent!") & "</pre>"
End If


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