[Exim] Reading stdin

Dear Folks,

let's imagine I have a perl-script that reads
from STDIN (while (<>) { ...) and is called
via a pipe-alias.

When I send a mail to this script, it gets the
message with "Content-Transfer-Encoding: quoted-printable"
and some chars are encoded like =3D or =20.

Can anyone tell me if this is normal?
Solutions?

Regards,
Sascha

---
Sascha E. Pollok
Technical Staff / Internet Port Hamburg
Grosse Reichenstrasse 27
D-20457 Hamburg
Germany
Tel.   +49 (0)40 37 49 19-0
Fax    +49 (0)40 37 49 19-29
Email: sp@???
ICQ #38955239