Encoding 7-bit World 8-bit World 8->7 translation
8BIT impossible OK QUOTED-PRINTABLE or BASE64
7BIT OK OK none needed
BINARY impossible OK BASE64
BASE64 OK OK none needed
QUOTED-P... OK OK none needed
It is a big difference between 8BIT and BINARY. You can theoretical
send BINARY files in the 8-bit world but only theoretical a lot
of transportation protocols assumes a limited line length.
This is also the reason to have both 8BIT and BINARY. So we have
to use BASE64 or some other translation scheme to send binary
in messages.
Sven-Ove Westberg, CAD, University of Lulea, S-951 87 Lulea, Sweden.