The date of service of a judicial or extrajudicial document abroad is, without prejudice to the provisions of Article 687-1, with regard to the person to whom it is made, the date on which the document is delivered or validly served to him.
Where it has not been possible to deliver or serve the document to the addressee, service is deemed to have been effected on the date on which the competent foreign authority or the French consular or diplomatic representative attempted to deliver or serve the document, or where this date is unknown, the date on which one of these authorities informed the requesting French authority that it was impossible to serve the document.
Where no certificate describing the execution of the request could be obtained from the competent foreign authorities, notwithstanding the approaches made to them, service is deemed to have been effected on the date the document was sent to them.