OK now I do have the timestamp from a TS provider.
How am I supposed to put it in a mime message so to comply with the standards? As far as I know, no mailer supports timestamping, and this will not be a problem because I will be handling the mime message myself.
However I want to make it the standard way... any examples?
Thanks.
I believe this is the appropriate format:
MIME-Version: 1.0
Content-Type: multipart/signed; protocol="application/timestamp-reply"; micalg="sha256"; boundary="{79EAC9E2-BAF9-11CE-8C82-00AA004BA90B}"
--{79EAC9E2-BAF9-11CE-8C82-00AA004BA90B}
MIME-Version: 1.0
Content-Type: text/plain
Hello
--{79EAC9E2-BAF9-11CE-8C82-00AA004BA90B}
Content-Type: application/timestamp-reply; name="smime.tsr"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.tsr"
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--{79EAC9E2-BAF9-11CE-8C82-00AA004BA90B}--
Please edit me if I am wrong. Any e-mail client that supports it so to verify?