> > # 7-Bit - Data is sent as US-ASC data.
> > # 8-Bit - 8 bit characters are included in short lines.
> > # BASE64 - Used for binary files. Three bytes are
> transformed into 4 ASC
> > characters in lines limited to a length of 76
> characters.
> > # Binary - Long lines are sent using 8 bit characters.
> These lines may not
> > be transportable using SMTP.
> > # Quoted-Printable - Used for ASC text. Line length is limited to 76
> > characters.
> > # X-Token - Defines private encoding values prefixed with an "X-".
>
> I think this long list of encodings (taken, I assume, from the MIME
> RFCs) is at best reflecting historical issue in email
> transfer that do not pertain to us, and at worst an outright
> mistake.

I'm not too sure about this list either - but we definitely need
base64Binary and hexBinary (these being the two XML Schema types for
binary information in XML) and possibly quotedPrintable.

Matthew