[exim] dont scan for spam or virus for one sender-domain

Hello list,
i have one question.
We have an exim mailserver (v 3.36, know its old, but hard to update
it), which scans mails for spam and viruses via amavisd-new.
Now i have to change the configuration in exim or amavisd-new,
that mails from one domain will be delivered directly via lmtptransport
into the cyrus-mailboxes.
Is it possible via exim-conf or exim-systemfilter?
Or has anybody an other solution?

Greets,
Volker