I think this variable is called
$rfc_message
because it refers to the IETF () standard RCF 2076 — one of the standards for e-mails, in this case the headers in e-mail message.
See
http://www.faqs.org/rfcs/rfc2076.html[
^];
this is the original:
http://www.ietf.org/rfc/rfc2076.txt[
^].
It also possible that the implied format is RFC 822, see
http://www.ietf.org/rfc/rfc822.txt[
^].
See the references to RFCs in PHP documentation on IMAP functions:
http://php.net/manual/en/ref.imap.php[
^].
Find code a sample here:
http://www.php.net/manual/en/function.imap-append.php[
^].
How to get message? You have to compose it yourself according the standards. This is essentially a raw e-mail package, the body of the message with all the headers (and parts with separate block of headers per each part for multi-part messages), all content which is normally can be saved as *.EML file by programs like Outlook Express.
As Peter correctly points out, It ALWAYS helps to RTFM first:
Microsoft Q209354.
—SA