Mail Message Format Type Constants indicate how the internet mail message has
been formatted or prepared.
MailMsgPrepared_None
(1) – Indicates that the message has NOT been prepared according to one of the
other types below.
MailMsgPrepared_Encoded
(2) – The message has been encoded. The message is determined to be
encoded by the presence of the "Content-Transfer-Encoding" header.
MailMsgPrepared_SignedData
(3) – The message has been signed and formatted according to the Cryptographic
Message Syntax (CMS) SignedData format. See RFC 2630. It is
determined to be in SignedData format if the content type header has the value
"application/pkcs7-mime; smime-type=signed-data". Please note that
the value may have been changed to some other user specified settings.
MailMsgPrepared_EnvelopedData
(4) – The message has been encrypted and formatted according to the
Cryptographic Message Syntax (CMS) EnvelopedData format. See RFC
2630. It is determined to be in EnvelopedData format if the content type
header has the value "application/pkcs7-mime; smime-type=enveloped-data".
Please note that the value may have been changed to some other user
specified settings.
MailMsgPrepared_AuthenticatedData
(5) – The message has been formatted according to the Cryptographic Message
Syntax (CMS) AuthenticatedData format. See RFC 2630. It is
determined to be in AuthenticatedData format if the content type header has the
value "application/x-authenticated". Please note that the value may
have been changed to some other user specified settings.
MailMsgPrepared_MultPartSigned
(6) – The message has been formatted as a multipart/signed message
according to RFC 1847. It is determined to be formatted this way if
the content type header has the value "Multipart/Signed".
MailMsgPrepared_MultPartEncrypted
(7) – The message has been formatted as a multipart/encrypted message
according to RFC 1847. It is determined to be formatted this way if
the content type header has the value "Multipart/Encrypted".
MailMsgPrepared_CompressedData (8) – The message has been formatted
according to the Cryptographic Message Syntax (CMS) CompressedData
format. See RFC 3274. It is determined to be in CompressedData
format if the content type header has the value "application/pkcs7-mime;
smime-type=compressed-data". Please note that the value may have
been changed to some other user specified settings.