[Mailman-Users] Are passwords obligatory?

[Soren Dayton]

Hi,

I was wondering whether the use of passwords is obligatory or not?  One
of the things that we use our current (smartlist) setup for is something
like a department wide announcements (that people can un-subscribe to
automatically).  Giving everyone passwords for this seems a little
excessive to me, so I was wondering if there were facilities for not
using this (all the time).

Thanks
Soren