What is the equivalent of "Dear Staff" in an email? For instance, a CEO wants to send an email to all the employees to invite them to a meeting. How could he or she start his email?
Chers/chères collègues; Mesdames, Messieurs; Chers/chères employé.e.s; Chers/Chères collaborateurs/collaboratrices
Are any of these forms acceptables?