Restricting 8-Bit Data sends using exim

Is there a way of configuring exim NOT to accept 8-bit DATA?

Our PP Hubs are configured not to accept this and I'd like to configure our
exim hosts in a similar manner
alex


Rfc822:A.Sharaz@???
X.400:I=A;S=Sharaz:ou=Computer Centre;O=Hull;Prmd=UK.AC;C=GB
X.500:cn=Alexander Sharaz@ou=Computer Centre@o=University of Hull@c=GB
Sent using Simeon 4.1 over Win-OS2