[Typo3] BE emailing members/groups

[David Harnig]

Hello list,

Sorry if I'm just missing something, but I would like to send out an
email to all the members of our intranet and/or all members in a
specific user group.

Is there something already built in or do I need an extension?

I tried searching the archive but I just wasn't using the right keywords
I guess to get relevent results.

Thanks for any help.

David