Classic ASP

Send Encrypted Email to Multiple Recipients

Demonstrates how to create and send an S/MIME encrypted email to multiple recipients. The digital certificate of each recipient is required. The encrypting/sending process uses each recipient's digital certificate (which internally contains the public key). Each recipient decrypts the received email using his/her private key.

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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
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"

' Load each recipient's certificate into a Chilkat certificate object.
' This example loads the certificates from files.  However, the Chilkat
' certificate object provides other means for loading certificates,
' such as from in-memory PEM strings, or in-memory binary DER encoded form, etc.
set cert1 = Server.CreateObject("Chilkat.Cert")
success = cert1.LoadFromFile("recipient1.cer")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( cert1.LastErrorText) & "</pre>"
    Response.End
End If

set cert2 = Server.CreateObject("Chilkat.Cert")
success = cert2.LoadFromFile("recipient2.cer")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( cert2.LastErrorText) & "</pre>"
    Response.End
End If

set cert3 = Server.CreateObject("Chilkat.Cert")
success = cert3.LoadFromFile("recipient3.cer")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( cert3.LastErrorText) & "</pre>"
    Response.End
End If

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

email.Subject = "This email is encrypted and sent to 3 recipients"
email.Body = "This is an S/MIME encrypted mail sent to 3 recipients"
email.From = "Chilkat Support <support@chilkatsoft.com>"

' Make each of the certificates available for encrypting the email
' by calling AddEncryptCert for each.
success = email.AddEncryptCert(cert1)
If (success = 1) Then
    success = email.AddEncryptCert(cert2)
End If

If (success = 1) Then
    success = email.AddEncryptCert(cert3)
End If

If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( email.LastErrorText) & "</pre>"
    Response.End
End If

' Add 3 recipients to the email (2 TO addresses, and 1 CC address)
success = email.AddTo("Recipient 1","admin@cknotes.com")
success = email.AddTo("Recipient 2","somebody001122@yahoo.com")
success = email.AddCC("Recipient 3","somebody123xyz@gmail.com")

' Indicate that the email is to be sent encrypted.
email.SendEncrypted = 1

' Send the encrypted email...
success = mailman.SendEmail(email)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( mailman.LastErrorText) & "</pre>"
Else
    Response.Write "<pre>" & Server.HTMLEncode( "Encrypted Email Sent!") & "</pre>"
End If


%>
</body>
</html>