rule matching order

Hi,

let's say  hobbit-alerts.cfg I have :

HOST=blah
    mail foo SERVICE=http
    mail bar


If an http alert comes in for host "blah", will both foo and bar get an 
email , or both? if both , can I say:

HOST=blah
    mail foo SERVICE=http
    mail bar SERVICE="!http"

?

Thanks

-- 
Daniel Bourque
Systems/Network Administrator
Weather Data Inc

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