[Exim] address rewriting

Good afternoon.

Have a bit of a problem.

Need to set up a lookup type to rewrite the $local_part and the $domain for
some domains which I forward to.

the file contains lists like below:

username@???        newname@???
*@domainname.tld            *@server.domainname.tld

is there a way to look up the localpart and domain on 1 lookup?

<something like below...i need help with the syntax>

*@*
$lookup{$1}$lookup{$2}lsearch{/etc/mail/exim-forwarders/address.rewrite}{$va
lue}fail) hT

Regards,

Tom Kinghorn