Mail Message Reply

This module makes it possible to reply to a message straight from Odoo instead of switching to an external email client. A new "Reply" action with a reply icon appears on messages in the chatter, but only for messages that are linked to a record and are of type email or comment.

When a user clicks Reply, Odoo opens the standard email composer already filled in: - the recipient is taken from the original message's sender address (a contact is created if it does not exist yet); - the subject is set to "Re:" followed by the original subject; - the body contains the user's signature and the original message quoted below it, showing From, Date, Subject and the message text; - the message is sent as an email (not just logged internally).

The quoted content is cleaned before being inserted, and the composer body and subject are computed automatically based on this reply context. After the composer is closed, the conversation is refreshed so the new reply shows up in the thread.

The module extends the existing mail features (mail.message and mail.compose.message) and adds a button in the message action bar; it does not create new menus or models.