Send S/MIME Signed Email

Send digitally signed email using the digital certificate of the recipient. To successfully sign, the sender's certificate must be pre-installed with private key. Typically, this is done via a .pfx file, or through Internet Explorer. If your code is going to run within ASP, ASP.NET, or a Windows Service, you will need to follow the instructions here (http://blog.chilkatsoft.com/?p=149) to import your certificate w/ private key such that it is accessible by the calling process.

Download Chilkat Email ActiveX for POP3 / SMTP

Download Chilkat IMAP ActiveX

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
' The mailman object is used for sending and receiving email.
set mailman = Server.CreateObject("Chilkat.MailMan2")

' Any string argument automatically begins the 30-day trial.
success = mailman.UnlockComponent("30-day trial")
If (success <> 1) Then
    Response.Write "Component unlock failed" & "<br>"

End If

' Set the SMTP server.
mailman.SmtpHost = "smtp.comcast.net"

' Create a new email object
set email = Server.CreateObject("Chilkat.Email2")

email.Subject = "This email is signed"
email.Body = "This is a digitally signed mail"
email.From = "Chilkat Support <admin@chilkatsoft.com>"
email.AddTo "TagTooga","admin@tagtooga.com"

' In this example, we've already installed the certificate for "admin@chilkatsoft.com"
' (with private key) in the current user's personal certificate store.
' If the email.SendSigned property is set, Chilkat will
' automatically search for and use the first non-expired certificate
' matching the sender's email address.  Chilkat searches
' the Current User's Personal certificate store, as well
' as the Local Machine's Personal certificate store.
' Run certmgr.msc to view the certs in the Current User's
' certificate store.
email.SendSigned = 1

success = mailman.SendEmail(email)
If (success <> 1) Then
    Response.Write mailman.LastErrorText & "<br>"
Else
    Response.Write "Mail Sent!" & "<br>"
End If

%>
</body>
</html>

Need a specific example? Send a request to support@chilkatsoft.com