B4X

Sending S/MIME Encrypted Email

Sends an encrypted email using the recipient's digital certificate from a .cer file. B4X

Dim success As Boolean = False

'  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.
Dim mailman As ChilkatMailMan
mailman.Initialize("mailman")

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

'  Load the .cer file into a certificate object.
'  When sending S/MIME encrypted email, it is the recipient's
'  certificate that is used for encryption.  Only the public key
'  is needed to encrypt.  The recipient is the only
'  one possessing the private key, and therefore is the only
'  one able to decrypt.
Dim cert As ChilkatCert
cert.Initialize("cert")
success = cert.LoadFromFile("cknotes.cer")
If success = False Then
    Log(cert.LastErrorText)
    Return
End If


'  Create a new email object
Dim email As ChilkatEmail
email.Initialize

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

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

'  Specify the certificate to be used for encryption.
success = email.SetEncryptCert(cert)

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