[Zope-CMF] Messaging in CMF Intranet?

[Jon Edwards]

I've been pondering the possibility of having user-to-user (or member to
member) messaging in a CMF-based intranet product, and wondered if anyone
had tried anything similar?

I'm *not* thinking of Instant Messaging, like Jabber, but more like cutdown
email between members of a site. So, for example, if you had changed a
document that several people were collaborating on, you could send them all
a message (to their Member-Folder) to ask them to review the changes. Or if
you had an event booked, you could send attendees a message to say that the
location had changed. Perhaps, if a member was logged-on, a flashing
envelope icon could be shown in their Actions bar", to show new messages had
arrived?

You could also use it from Workflow, to send non-urgent notifications
(rather than sending an email)?

Has anyone tried this or similar... care to share any tips (or even code)?
:-)

Cheers, Jon