reality check

>> Thanks Russel. I thought the 77K-ish file was small enough.

> Limit is 40 K AFTER email system plays with it.
> If 8 bit bytes  is efficiently transferred with 7 bit ASCII
> you get 7/7 * 40k =3D 35k.
> Somewhat smaller again than that is probably safer.

Messages with a few non-7-bit-ASCII characters may be encoded
as quoted-printable; such behavior is encouraged.  Some mail
systems will treat a file with even 1 eight-bit character as
being a "binary file".

Binary files (streams of octets with many or most characters
not falling in the printable ASCII set) are encoded in BASE64
per email RFCs.  This encodes 3 octets (8-bit bytes, 24-bits)
as 4 printable ASCII chars.  Thus, the binary file will expand
to 133% of its original size.

Safer size limit is 40KB / 1.33 =3D ~30KB.

						Lee Jones
--=20
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