Select Cert for Encrypted Email

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

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//  The mailman object is used for sending and receiving email.
Chilkat.MailMan mailman = new Chilkat.MailMan();

//  Any string argument automatically begins the 30-day trial.
bool success;
success = mailman.UnlockComponent("30-day trial");
if (success != true) {
    MessageBox.Show("Component unlock failed");
    return;
}

//  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.
Chilkat.Cert cert = new Chilkat.Cert();

success = cert.LoadByCommonName("Chilkat Software");
if (success != true) {
    //  Try loading it by email address.
    success = cert.LoadByEmailAddress("comodo@chilkatsoft.com");
    if (success != true) {
        MessageBox.Show(cert.LastErrorText);
        return;
    }

}

//  Create a new email object
Chilkat.Email email = 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) {
    MessageBox.Show(email.LastErrorText);
    return;
}

success = mailman.SendEmail(email);
if (success != true) {
    MessageBox.Show(mailman.LastErrorText);
}
else {
    MessageBox.Show("Mail Sent!");
}