Initial administrative tasks when you log on to the administration console for the first time includes editing the admin account to set up appropriate aliases so that notifications that are automatically generated are routed to your admin mailbox.
Two aliases for the admin account are created during install:
Postmaster. The postmaster address is displayed in email messages that are automatically generated from Postfix when messages cannot be sent. If users reply to that address, the message is forwarded to the administrator's mailbox.
Root. This address is where notification messages from the operating system are sent.
If you have other notifications that are automatically generated, create aliases of these in your account to make sure the notifications are emailed to you.
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