search for: accountspayable

Not sure what to call this - I'm actually working out the details as I type this. I want to have a valid username/password for an account for sending purposes - but when receiving this is an alias that broadcasts to several users. Example: accountspayable at mydomain.com - is an alias for jane at mydomain.com, june at mydomain.com, and john at mydomain.com. However - any mails sent (from a particular client software) should all only show "accountspayable" as the sender. How would I implement this? I'm asking here because Dovecot...

...able/robust they are, and what are the pros/cons/capabilities of each. The specific problem I''m trying to solve is this: I''ve got a bunch of users, who will need to be authenticated and assigned roles (e.g. Administrator, User, ...) and only for specific parts of the system (e.g. AccountsPayable, AccountsReceivable, GeneralLedger). No, I''m not making an accounting system, but this is the simplest analogy I could think of to describe the login/authentication I need. A user may be an Administrator for AccountsPayable, but have no rights whatsoever for GeneralLedger. In other word...