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diff --git a/addons/mail/models/mail_thread_cc.py b/addons/mail/models/mail_thread_cc.py
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+++ b/addons/mail/models/mail_thread_cc.py
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+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import _, api, fields, models, tools
+
+
+class MailCCMixin(models.AbstractModel):
+    _name = 'mail.thread.cc'
+    _inherit = 'mail.thread'
+    _description = 'Email CC management'
+
+    email_cc = fields.Char('Email cc', help='List of cc from incoming emails.')
+
+    def _mail_cc_sanitized_raw_dict(self, cc_string):
+        '''return a dict of sanitize_email:raw_email from a string of cc'''
+        if not cc_string:
+            return {}
+        return {tools.email_normalize(email): tools.formataddr((name, tools.email_normalize(email)))
+            for (name, email) in tools.email_split_tuples(cc_string)}
+
+    @api.model
+    def message_new(self, msg_dict, custom_values=None):
+        if custom_values is None:
+            custom_values = {}
+        cc_values = {
+            'email_cc': ", ".join(self._mail_cc_sanitized_raw_dict(msg_dict.get('cc')).values()),
+        }
+        cc_values.update(custom_values)
+        return super(MailCCMixin, self).message_new(msg_dict, cc_values)
+
+    def message_update(self, msg_dict, update_vals=None):
+        '''Adds cc email to self.email_cc while trying to keep email as raw as possible but unique'''
+        if update_vals is None:
+            update_vals = {}
+        cc_values = {}
+        new_cc = self._mail_cc_sanitized_raw_dict(msg_dict.get('cc'))
+        if new_cc:
+            old_cc = self._mail_cc_sanitized_raw_dict(self.email_cc)
+            new_cc.update(old_cc)
+            cc_values['email_cc'] = ", ".join(new_cc.values())
+        cc_values.update(update_vals)
+        return super(MailCCMixin, self).message_update(msg_dict, cc_values)
+
+    def _message_get_suggested_recipients(self):
+        recipients = super(MailCCMixin, self)._message_get_suggested_recipients()
+        for record in self:
+            if record.email_cc:
+                for email in tools.email_split_and_format(record.email_cc):
+                    record._message_add_suggested_recipient(recipients, email=email, reason=_('CC Email'))
+        return recipients