Article 1127-3 of the French Civil Code
An exception is made to the obligations referred to in 1° to 5° of Article 1127-1 and the first two paragraphs of article 1127-2 for contracts for the supply of goods or the provision of services which are concluded exclusively by exchange of electronic mail. It is also possible to derogate from the provisions of 1° to 5° of article 1127-1 and article 1127-2 in contracts concluded between professionals.