Send Email with 8bit Content-Transfer-Encoding

Send an email using the "8bit" content-transfer-encoding.

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Download Chilkat .NET for 1.0 / 1.1 Framework

//  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";

//  Create a new email object
Chilkat.Email email = new Chilkat.Email();

email.Subject = "This is a test";
//  The equals character is encoded as =3D in quoted-printable.
//  If the encoding is truly 8bit, we won't see it in the MIME source
//  of the email.  Instead, we'll see the equals character unmodified.
email.Body = "This is a test ===";
email.From = "Chilkat Support <support@chilkatsoft.com>";
email.AddTo("Chilkat Admin","admin@chilkatsoft.com");

//  Set our content-transfer-encoding to 8bit:
//  The AddHeaderField will replace the header field if it
//  already exists.
email.AddHeaderField("content-transfer-encoding","8bit");

//  That's it... send the email and the HTML and/or plain-text body
//  will not be encoded using quoted-printable or base64 -- it
//  will instead be sent unencoded as 8-bit characters.
success = mailman.SendEmail(email);
if (success != true) {
    MessageBox.Show(mailman.LastErrorText);
}
else {
    MessageBox.Show("Mail Sent!");
}

//  To see the exact MIME of the email sent, call
//  mailman.RenderToMime:
string mimeSource;
mimeSource = mailman.RenderToMime(email);
textBox1.Text += "MIME source of email just sent" + "\r\n";
textBox1.Refresh();
textBox1.Text += mimeSource + "\r\n";
textBox1.Refresh();