(Classic ASP) POP3 Verify Signed (S/MIME) Email

Demonstrates how to download and verify digitally signed S/MIME email.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

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

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.MailMan")
set mailman = Server.CreateObject("Chilkat.MailMan")

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

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

' sa is a Chilkat.StringArray
Set sa = mailman.GetUidls()
If (mailman.LastMethodSuccess = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( mailman.LastErrorText) & "</pre>"
    Response.End
End If

i = 0
Do While i < sa.Count

    uidl = sa.GetString(i)

    ' email is a Chilkat.Email
    Set email = mailman.FetchEmail(uidl)
    If (mailman.LastMethodSuccess = 0) Then
        Response.Write "<pre>" & Server.HTMLEncode( mailman.LastErrorText) & "</pre>"

        Response.End
    End If

    Response.Write "<pre>" & Server.HTMLEncode( email.From) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( email.Subject) & "</pre>"

    ' The security layers of signed and/or encrypted emails
    ' are automatically "unwrapped" when loaded into
    ' a Chilkat email object.
    ' An application only needs to check to see if an email
    ' was received signed or encrypted, and then examine
    ' the success/failure.  For example:
    If (email.ReceivedSigned = 1) Then

        Response.Write "<pre>" & Server.HTMLEncode( "This email was signed.") & "</pre>"

        ' Check to see if the signatures were verified.
        If (email.SignaturesValid = 1) Then
            Response.Write "<pre>" & Server.HTMLEncode( "Digital signature(s) verified.") & "</pre>"
            Response.Write "<pre>" & Server.HTMLEncode( "Signer: " & email.SignedBy) & "</pre>"

            ' The certificate used for signing may be obtained
            ' by calling email.GetSignedByCert.

            ' cert is a Chilkat.Cert
            Set cert = email.GetSignedByCert()
            If (email.LastMethodSuccess = 0) Then
                Response.Write "<pre>" & Server.HTMLEncode( "Failed to get signing certificate object.") & "</pre>"
            Else
                Response.Write "<pre>" & Server.HTMLEncode( "Signing cert: " & cert.SubjectCN) & "</pre>"

            End If

        Else
            Response.Write "<pre>" & Server.HTMLEncode( "Digital signature verification failed.") & "</pre>"
        End If

    End If

    i = i + 1
Loop

success = mailman.Pop3EndSession()

%>
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