How do I send a email to all users on server?

[Steven W. Orr]

On Monday, Feb 19th 2007 at 11:20 -0800, quoth Bazooka Joe:

=>It has to be an email - as many users don't login to shell.
=>
=>On 2/19/07, Manuel Arostegui Ramirez <manuel at todo-linux.com> wrote:
=>> El Lunes, 19 de Febrero de 2007 19:56, Bazooka Joe escribi?:
=>> > I want to notify my users of downtime... I have not been able to find
=>> > any way to send an email to all users on server.
=>> >
=>> > any idea how that is done?
=>> 
=>> How about using wall?


The traditional way to do it is to keep a list. You can use anything 
you'd like including all the way down to a mail alias.