Go to navigation FAQ Most of the information you need can be found on our website. We invite you to answer the main questions you may ask yourself concerning the obtaining and issuance of your certificates, as well as the follow-up of your files. In general, we also advise you to read the recommendations made on the use, backup and security of your certificates. Getting informed is not time wasted, it saves you time later. Installing your certificates Organization and natural person certificates Server certificates Changes, updates to your workstation, your browser and the precautions to be taken ... Windows messages and security alerts Users of Chip Cards, readers and USB keys: questions about Gemsafe Toolbox software ... Teleprocedures or other applications Using your certificates from your email software (Microsoft Outlook and Outlook Express) Questions relating to the online application Choice of Products Follow-up of your request Renewal of the certificate? Definitions of concepts related to certificates If you have not found the solution to your problem in our FAQ, you can contact our hotline on 0 892 70 70 66 (0.34 cts per min) CONTACT US FOR FREE 0 809 109 809 MONDAY TO FRIDAY 9:00 A.M. TO 5:30 P.M. Legal notices & personal data management Our general conditions of use Credits We use cookies to give you the best experience on our site. You can find out more about the cookies we use or disable them in settings . Accept Certinomis is a Docaposte brand , a subsidiary of La Poste Group