[exim] More that one domain

Hi Everyone
I run a web server on which i host a number of domains
Just for examples sake i will use 2 of them
my one for the service is dannz.ath.cx and i have webmaster, daniel,
help etc setup
i have another patrick2005.ath.cx and i want to have a webmaster
account for this domain

How would i go about doing that.

Daniel

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www.dannz.net.nz