IETF RFC requires every domain using email have an abuse & postmaster address where it can receive email. In Smartermail we manually add two Email Aliases for each domain that forwards all incoming email to our primary abuse@ and postmaster@ addresses (i.e., abuse@customerdomain.com forwards to abuse@emailproviderdomain.com). It would be nice to have this as a Global Setting in Smartermail where the abuse@ and postmaster@ addresses can be globally defined for all domains (or have them sent to the Primary System Administrator in Smartermail by default if a domain does not already have these addresses defined as either an Email Account or Email Alias).