Archive Ruleset Question

[Alex Neuman van der Hans]

Regarding the use of rulesets for the "Archive Mail" function - if I 
have something like:

From:   127.      server-originated-messages at somewhereelse.com
To:   certainuser at mydomain.com   /some/where/mailboxfile # (which is an 
existing filename that RFC822-formatted messages get added to)

How do I add a default that essentially "does nothing"? In my ignorance 
I believe the desired effect could be achieved with:

FromOrTo:   default   /dev/null

But I don't know if there is a more elegant way to do it.

Thanks in advance...