As I am sure everyone knows, it is very easy to CC an email to a list of addresses when you meant / were supposed to BCC them, thus exposing everyone's email address to everyone else.
There are also cases where CC was what was intended - usually to a handful of recipients, rather than hundreds - so banning CC entirely is difficult to sell to users. Is it possible to set up Postfix so that it refuses to send outgoing email with more than a certain number of CC'd addresses? Ian
