Select Cert for Encrypted Email

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Demonstrates how to search for a specific certificate from Current User and Local Machine certificate stores, and then use it for encrypting an email.

'  The mailman object is used for sending and receiving email.
Dim mailman As New Chilkat.MailMan()

'  Any string argument automatically begins the 30-day trial.
Dim success As Boolean
success = mailman.UnlockComponent("30-day trial")
If (success <> true) Then
    MsgBox("Component unlock failed")
    Exit Sub
End If


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

'  Search the Local Machine and Current User certificate
'  stores for a certificate -- by common name or by email  address.
Dim cert As New Chilkat.Cert()

success = cert.LoadByCommonName("Chilkat Software")
If (success <> true) Then
    '  Try loading it by email address.
    success = cert.LoadByEmailAddress("comodo@chilkatsoft.com")
    If (success <> true) Then
        MsgBox(cert.LastErrorText)
        Exit Sub
    End If


End If


'  Create a new email object
Dim email As New Chilkat.Email()

email.Subject = "This email is encrypted"
email.Body = "This is a digitally encrypted mail"
email.From = "Chilkat Support <support@chilkatsoft.com>"
email.AddTo("Comodo Test","comodo@chilkatsoft.com")

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

'  Specify the certificate:
success = email.SetEncryptCert(cert)
If (success <> true) Then
    MsgBox(email.LastErrorText)
    Exit Sub
End If


success = mailman.SendEmail(email)
If (success <> true) Then
    MsgBox(mailman.LastErrorText)
Else
    MsgBox("Mail Sent!")
End If