Easy sendmail question
 

I'm having to make some changes to my sendmail configuration. I host quite a few domains, but each has very few users. In the near future, I will have a bunch of users on one domain and still have few on the others. I would like to have any email sent to a username at the larger domain route to that username's inbox. So, if an email comes in to gauge73@domain.com, I want it to go to the local gauge73 mailbox via procmail.

Currently I am doing this using the virtusertable.db. However, I would like to make this larger domain do it by default for all users and still reject any emails to nonexistant users. Where do you set up the default behavior? Virtusertable seems to be just for exceptions, which is fine for the other domains.