This template runs on calendar event records. It can therefore not really use 'email' as field to compute a To. Let us void this field as it is used mainly for a backend action that sets recipients. Task-2657930 (Email templates fixup) closes odoo/odoo#79895 X-original-commit: 5b3ad80f427fc2ac0e91622a94f0f63b3d2bf721 Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>