[Exim] need to chroot exim?

Is there a need to chroot exim? I'm running exim for all my mail on 10 domains.
I was using a webhost, but now I'm trying to host apache/mail/bind. I notice
that postfix is chroot. I can hardly find anything on google regarding a chroot
exim environment. I dont relay mail. Is there any other security measures I
should be aware of?

thanks,
james