Where does Citadel put postmaster messages? How can I change that?

If you want to receive messages for common addresses such as postmaster@your-domain.com, simply edit your administrator's account and add those addresses to the account.

Common addresses include:

• root: your system will send mail to this account. for example cron.
• postmaster: messages about errors on your mail system
• abuse: complaints about unwanted email or activity originating from your site.