IANAL, but the law says in France, anything with a written name as a signature is valid, although I suppose with limitations, but it is very clear that an email

IANAL, but the law says in France, anything with a written name as a signature is valid, although I suppose with limitations, but it is very clear that an email with a signature is enough for child custody agreements, and theoretically an SMS would be enough too, although I don’t know if the SMS has been tested in court. Apart from harassment cases.