Re: NULL

> 2) Transports/user-agents that cannot pass NUL are "broken".
They are, at least according to RFCs 821 (section 4.5.2), 822 (sections
3.3 and 4.1), and 1652 (section 3).  RFC-1521 does not explicitly state
that NUL characters are permitted in 8bit body parts, but I don't see
how you can read it to state that they are forbidden.

There seems to be consensus that the specs need updating to reflect
reality.  This is fine, but we must be aware that this is what we are
doing.

Tim.