Adding Procmail.log to Logwatch?

I guess this is not going to be as easy as i would like!!

I would like to know if it is possible to add the /var/log/procmail.log to be included in logwatch.
so that it is sent in the logwatch report daily?

I know Virtualmin uses procmail and it shows the emails in and out of the box and would like to monitor the incoming, but more importantly the outgoing mails from the server (not any particular domain), so i can quickly spot potential spaming from within a domain.

I know there will be quite a lot of files to write in order to accomplish this so i am looking for someone with logwatch knowledge to help me configure it.

Many many thanks in advance.