| Sorry, but 8bit is not allowed in RFC 822 or SMTP. There are some
| broken implementations which allow it, but that doesn't make it right.
How should I understand that?
As of the publication of this document, there are
no standardized Internet transports for which it
is legitimate to include unencoded 8-bit or binary
data in mail bodies. Thus there are no
circumstances in which the "8bit" or "binary"
Content-Transfer-Encoding is actually legal on the
Internet. However, in the event that 8-bit or
binary mail transport becomes a reality in
Internet mail, or when this document is used in
conjunction with any other 8-bit or binary-capable
transport mechanism, 8-bit or binary messages
should be labelled as such using this mechanism.
Does it mean, that sendmail-5.65c with eight bit
transparency is illegal?
There are some problems with MIME and 8bit, which does not belongs
to MH only.