The French Civil Supreme Court has held that the criteria of Art. 1367 regarding the validity of e-signatures is sufficient to allow for reliance on an e-signed legal statement.
To that extent, there is no need to rely on a qualified e-signature to ensure the validity of an electronically signed legal statement if the e-signature consists in 1) using a reliable means of identification; and (2) that guarantees its link with the act it is attached to.
However, from a practical perspective, documents signed with qualified or advanced e-signatures can be deemed as legally binding written documents if the law requires written form. Using qualified e-signatures allows the signatories to benefit from Art. 1367's legal reliability presumption. The reliability of an advanced e-signature shall be proven (Cass. Civ. 1ère, No. 15-10.732).