email@example.com - all current local ICS members and associate members
firstname.lastname@example.org - former members of the ICS (or ITP)
email@example.com - all astro people at the ICS and Physics Institute
firstname.lastname@example.org - all PhD students at the ICS
NOTE: The old mailing lists (email@example.com, firstname.lastname@example.org and email@example.com) are all just aliases for firstname.lastname@example.org.