[MlMt] Smart mailbox excluding other smart mailboxes

[Eric A. Meyer]

    I feel like someone asked a similar question recently, but I can't 
find it in my mail archives.  So.
    I'd like to create a smart mailbox that shows everything in my 
IMAP inbox except for those messages that are displayed in some other 
smart mailboxes.  As an example, say I have a smart mailbox called 
"Uptime Monitor" that shows me all messages from an uptime-monitoring 
script, and another called "Contact Mail" that shows all the messages 
submitted from a contact form.
    So then I want to set up a smart mailbox called "Miscellaneous 
Mail" that shows everything in my IMAP inbox that isn't matched by 
the "Uptime Monitor" and "Contact Mail" smart mailboxes.
    Is that possible?

-- 
Eric A. Meyer (eric at meyerweb.com)     http://meyerweb.com/