Sometimes you want to send a message via email to all of your users. Sometimes you want to send
that message only to a group of users or only to those having access to the back-end. Sending emails is
always a bit delicate. Nobody wants to be a SPAMMER and nobody wants to receive SPAM, so be
careful!
In order to use the mass mail user component, you have to configure Joomla for sending emails in Global
Configuration → Server → Mail settings. You may then configure the Subject Prefix and the Mailbody Suffix in Users
→ Mass Mail Users: Options - Mass Mail.
Have fun!