Send Email with 8bit Content-Transfer-Encoding

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

'  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"

'  Create a new email object
Dim email As 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) Then
    MsgBox(mailman.LastErrorText)
Else
    MsgBox("Mail Sent!")
End If


'  To see the exact MIME of the email sent, call
'  mailman.RenderToMime:
Dim mimeSource As String
mimeSource = mailman.RenderToMime(email)
TextBox1.Text = TextBox1.Text & "MIME source of email just sent" & vbCrLf
TextBox1.Refresh()
TextBox1.Text = TextBox1.Text & mimeSource & vbCrLf
TextBox1.Refresh()