[cobalt-users] Changes to catchall email accounts

[Chris Dorman <cdorman@xxxxxxxxx>]

  In the recent update to Raq3 server the docs says 

"system users (such as admin, sys, postmaster, root) for a virtual site are now directed to the corresponding email account for the system user. Please remove all other aliases for the above users on virtual sites before installing this update "

  My question is,  Who is the system user?  Is that the account(s) on the virtual website that is marked as administrator?  Or does all these messages go to the server administrator email account?

  Is there a way to return the function of the @mydomain.com alias that was previously used to catch all the undeliverable mail on a domain (in this example mydomain.com).