The tool to always open a full composer on the button 'Send a Message'
Administrator (SuperUser) might delete messages
Full re-definition of the message_post function to add extra context parameters
Simple Odoo mailbox
Chatter as history attachments
Prevent adding partners/customers as followers
Open a Pop-up Email Composer for All 'Send Message'
1. Use the live chat to ask your questions.
2. The operator answers within a few minutes.