Outlook and similar Windows based systems use windows-874 for encoding Thai characters which is not natively known by Python. Simply aliasing the Windows encoding as cp874 adds support for this encoding. opw-3684161 closes odoo/odoo#161117 X-original-commit: 65d4c2507e762dc273a02a2e2215c49a5976568d Signed-off-by: Julien Castiaux (juc) <juc@odoo.com> Co-authored-by: Julien Castiaux <juc@odoo.com>