[exim] Replacement for match_domain in Exim 4.3?

Hi,

we're running Exim 4.3 and I would like to limit users to send mail with a
from: field with domains that are in the local_domains list.

I found the nice option match_domain that I migt be able to use in a
acl_smtp_mail ACL, but this option is not yet available in 4.3.

Is there an alternative way of achieving the same?

Regards,
Torsten