Mozilla Connect

Source email systems (Gmail, Exchange, etc.) have the ability to flag incoming emails as being from outside the organization / domain.Is there a way to include these in the Thunderbird view of the emails?

Hi.  As I manage multiple calendars and have them sync'd into Thunderbird ((i.e. Work, Charity, Personal, etc.), each event has a 'source' event on the calendar, along with clones to show I'm busy on the other calendars.  For example, A business meet...