all-in-one privacy solution":["Proton Unlimited est une solution tout-en-un respectueuse de la vie privée"],"Black Friday":["Black Friday"],"No ads. Privacy by default.":["Aucune publicité, le respect de la vie privée comme règle absolue"],"People before profits":["Les individus passent avant les profits"],"Security through transparency":["Notre engagement de transparence"],"The best Proton Mail ${ BLACK_FRIDAY } deals":["Les meilleures offres ${ BLACK_FRIDAY } de Proton Mail"],"The world’s only community- supported email service":[" La seule messagerie au monde soutenue par la communauté"]},"specialoffer:limited":{"${ hours } hour":["${ hours } heure","${ hours } heures"],"${ hoursLeft }, ${ minutesLeft } and ${ secondsLeft } left":["Temps restant : ${ hoursLeft }, ${ minutesLeft }, ${ secondsLeft }"],"${ minutes } minute":["${ minutes } minute","${ minutes } minutes"],"${ seconds } second":["${ seconds } seconde","${ seconds } secondes"],"Limited time offer":["Offre à durée limitée"]},"specialoffer:listitem":{"Create multiple addresses":["Créez plusieurs adresses"],"Hide-my-email aliases":["Alias « hide-my-email »"],"Quickly unsubscribe from newsletters":["Désabonnez-vous rapidement des newsletters"],"Use your own domain name":["Utilisez votre propre nom de domaine"]},"specialoffer:logos":{"As featured in":["Ils en parlent"]},"specialoffer:metadescription":{"Get an encrypted email that protects your privacy":["Choisissez une messagerie électronique chiffrée qui protège votre vie privée"]},"specialoffer:metatitle":{"Proton Mail Black Friday Sale - Up to 40% off":["Offre Proton Mail Black Friday - Jusqu'à 40 % de réduction"]},"specialoffer:newmetadescription":{"Get up to 40% off Proton Mail subscriptions this Black Friday. Find great deals on our secure end-to-end encrypted email plans.":["Obtenez jusqu'à 40 % de réduction sur les abonnements Proton Mail à l'occasion du Black Friday. Profitez d'offres exceptionnelles sur nos abonnements de messagerie électronique sécurisée et chiffrée de bout en bout."]},"specialoffer:newmetatitle":{"Proton Mail Black Friday sale | Up to 40% off secure email":["Offre Black Friday Proton Mail | Jusqu'à 40 % de réduction"]},"specialoffer:note":{"* Billed at ${ TOTAL_SUM } for the first year":["* Facturé ${ TOTAL_SUM } pour la première année"],"*Billed at ${ TOTAL_SUM } for the first 2 years":["*Facturé ${ TOTAL_SUM } pour les 2 premières années"],"30-day money-back guarantee":["Garantie satisfait ou remboursé pendant 30 jours"],"Billed at ${ TOTAL_SUM } for the first 2 years":["Facturé ${ TOTAL_SUM } pour les 2 premières années"],"Billed at ${ TOTAL_SUM } for the first year":["Facturé ${ TOTAL_SUM } pour la première année"],"You save ${ SAVE_SUM }":["Vous économisez ${ SAVE_SUM }"]},"specialoffer:off":{"${ PERCENT_OFF } off":["-${ PERCENT_OFF }"]},"specialoffer:testimonial":{"I love my ProtonMail":["J'adore mon ProtonMail"],"My favorite email service":["Ma messagerie électronique préférée"],"Thanks Proton for keeping us all safe in the complicated internet universe.":["Merci Proton de nous garder en sécurité dans l'univers complexe d'internet."],"You get what you pay for. In the case of big tech, if you pay nothing, you get used. I quit using Gmail and switched to @ProtonMail":["Vous avez ce pour quoi vous payez. Avec les Big Tech, si vous ne payez rien, vous êtes utilisé. J'ai arrêté d'utiliser Gmail et je suis passée @ProtonMail"]},"specialoffer:time":{"Days":["Jours"],"Hours":["Heures"],"Min":["Min"]},"specialoffer:title":{"And much more":["Et aussi"],"Safe from trackers":["À l'abri des traqueurs"],"Stay organized":["Restez organisé"],"Black Friday email deals":["Offres Black Friday pour la messagerie électronique"],"Don’t just take our word for it":["Ce qu'en disent nos utilisateurs"],"Make your inbox yours":["Faites de votre boîte de réception la vôtre"],"Our story":["Notre histoire"],"Transfer your data from Google in one click":["Transférez vos données depuis Google en un clic"]},"specialoffer:tooltip":{"Access blocked content and browse privately. Includes ${ TOTAL_VPN_SERVERS }+ servers in ${ TOTAL_VPN_COUNTRIES }+ countries, connect up to 10 devices, access worldwide streaming services, malware and ad-blocker, and more.":["Accédez aux contenus bloqués et naviguez en toute confidentialité. Comprend plus de ${ TOTAL_VPN_SERVERS } serveurs dans plus de ${ TOTAL_VPN_COUNTRIES } pays, la possibilité de connecter jusqu'à 10 appareils, l'accès aux services de streaming dans le monde entier, un bloqueur de logiciels malveillants et de publicités et bien plus encore."],"Easily share your calendar with your family, friends or colleagues, and view external calendars.":["Partagez facilement votre calendrier avec votre famille, vos amis ou collègues et consultez des calendriers externes."],"Includes support for 1 custom email domain, 10 email addresses, 10 hide-my-email aliases, calendar sharing, and more.":["Comprend la prise en charge de 1 domaine de messagerie personnalisé, de 10 adresses e-mail, de 10 alias « hide-my-email », du partage de calendriers et bien d'autres fonctionnalités."],"Includes support for 3 custom email domains, 15 email addresses, unlimited hide-my-email aliases, calendar sharing, and more.":["Comprend la prise en charge de 3 domaines de messagerie personnalisés, de 15 adresses e-mail, d'un nombre illimité d'alias « hide-my-email », du partage de calendriers et bien d'autres fonctionnalités."],"Manage up to 25 calendars, mobile apps, secured with end-to-end encryption, 1-click calendar import from Google, and more.":["Jusqu'à 25 calendriers, des applications mobiles, la sécurité avec le chiffrement de bout en bout, l'importation de calendrier en un clic depuis Google..."]},"Status banner":{"Learn more":["En savoir plus"],"Please note that at the moment we are experiencing issues with the ${ issues[0] } service.":["Nous rencontrons actuellement des problèmes avec le service ${ issues[0] }."],"We are experiencing issues with one or more services at the moment.":["Nous rencontrons actuellement des problèmes avec un ou plusieurs services."]},"Status Banner":{"At the moment we are experiencing issues with the Proton VPN service":["Nous rencontrons actuellement des problèmes avec le service Proton VPN."],"Learn more":["En savoir plus"]},"steps":{"Step":["Étape"]},"suggestions":{"Suggestions":["Suggestions"]},"Support":{"Sub category":["Sous-catégorie","Sous-catégories"]},"Support article":{"${ readingTime } min":["${ readingTime } minute","${ readingTime } minutes"],"Category":["Catégorie","Catégories"],"Didn’t find what you were looking for?":["Vous ne trouvez pas ce que vous cherchez ?"],"General contact":["Contact - Général"],"Get help":["Obtenir de l'aide"],"Legal contact":["Contact - Juridique"],"Media contact":["Contact - Média"],"Partnerships contact":["Contact - Partenariats"],"Reading":["Lecture"]},"Support Form Platform option":{"VPN for Android TV":["VPN pour Android TV"],"VPN for Chromebook":["VPN pour Chromebook"]},"Support troubleshooting":{"App version":["Version de l'application"],"Browser":["Navigateur"],"Check if this helps":["Vérifiez si cela vous aide."],"Choose a product":["Choisir un produit"],"Did this solve your issue?":["Cela a-t-il résolu votre problème ?"],"Faster assistance is just a few clicks away":["Quelques clics suffisent pour obtenir une assistance plus rapide"],"How can we help?":["Comment pouvons-nous vous aider ?"],"No, contact support":["Non, contacter le support"],"Please fill out one field after another":["Veuillez remplir les champs l'un après l'autre"],"Please make your selections":["Veuillez faire vos sélections"],"Proton account":["Compte Proton"],"Proton for Business":["Proton for Business"],"Thank you for your feedback":["Nous vous remercions pour votre commentaire."],"What can we help with?":["En quoi pouvons-nous vous aider ?"],"Yes":["Oui"]},"support_modal_search_query":{"Search query":["Recherche"]},"support_search_button":{"Search":["Rechercher"]},"support_search_i_am_looking_for":{"I'm looking for":["Je recherche des informations sur..."]},"SupportForm":{"For a faster resolution, please report the issue from the Bridge app: Help > Report a problem.":["Pour que le problème soit résolu plus rapidement, vous pouvez le signaler à partir de l'application Bridge : Aide > Signaler un bug."],"Information":["Informations"]},"SupportForm:option":{"Account Security":["Sécurité du compte"],"Contacts":["Contacts"],"Custom email domain":["Domaine de messagerie personnalisé"],"Email delivery and Spam":["Distribution des messages et indésirables/spam"],"Encryption":["Chiffrement"],"Login and password":["Identifiant et mot de passe"],"Merge aliases and accounts":["Fusion des alias et des comptes"],"Migrate to Proton":["Migration vers Proton"],"Notifications":["Notifications"],"Other":["Autre"],"Plans and billing":["Abonnements et facturation"],"Proton for Business":["Proton for Business"],"Sign up":["Inscription"],"Storage":["Espace de stockage"],"Users, addresses, and identities":["Utilisateurs, adresses et identités"]},"SupportForm:optionIntro":{"Select a topic":["Choisissez un sujet"]},"swiss_baseed_feature":{"Swiss based":["Basé en Suisse"]},"Testimonial":{"Awards":["Récompenses"],"Customers":["Clients"],"Featured":["Ils en parlent"],"Go to testimonial source":["Accéder aux commentaires"],"Open source of award":["Voir l'information originale concernant ce prix"],"Open source of quote":["Voir l'information originale concernant cette citation"],"Reviews":["Avis"],"Videos":["Vidéos"],"Watch on TikTok":["Regarder sur TikTok"],"Watch on YouTube":["Regarder sur YouTube"]},"TestimonialCategory":{"Awards":["Récompenses"],"Customers":["Clients"],"Featured":["Ils en parlent"],"Media":["Média"],"Reviews":["Avis"],"Videos":["Des vidéos"]},"Text":{"If you need help, check out our ${ supportLink }.":["Si vous avez besoin d'aide, consultez notre ${ supportLink }."],"The page you’re looking for might have been removed, or it could be an\nold link.":["La page recherchée a peut-être été retirée ou le lien utilisé n'est plus valide."],"Your question may already have an answer in our knowledge base:":["La réponse à votre question se trouve peut-être déjà dans notre base de connaissances :"]},"Title":{"On this page":["Sur cette page"],"Related articles":["Articles similaires"],"Share ${ thisPage }":["Partagez ${ thisPage }"],"Switch to Proton Pass - Contact us":["Passez à Proton Pass - Contactez-nous"],"Thank you!":["Merci !"],"this page":["cette page"]},"Tooltip":{"More information":["Plus d'informations"]},"tooltip_vpn":{"Access blocked content and browse privately. Includes ${ TOTAL_VPN_SERVERS }+ servers in ${ TOTAL_VPN_COUNTRIES }+ countries, highest VPN speed, ${ TOTAL_VPN_CONNECTIONS } VPN connections, worldwide streaming services, malware and ad-blocker, and more.":["Accédez aux contenus bloqués et naviguez en toute confidentialité. Comprend plus de ${ TOTAL_VPN_SERVERS } serveurs dans plus de ${ TOTAL_VPN_COUNTRIES } pays, la vitesse VPN la plus élevée, ${ TOTAL_VPN_CONNECTIONS } connexions VPN, l'accès aux services de streaming dans le monde entier, un bloqueur de logiciels malveillants et de publicités et bien plus encore."]},"vpn_servers":{"Get Proton VPN Plus":["Je choisis Proton VPN Plus"]},"wallet_signup_2024:Action":{"Get Proton Wallet":["Obtenir Proton Wallet"]},"wallet_signup_2024:Homepage hero product link title":{"Wallet":["Wallet"]},"wallet_signup_2024:Homepage product navigation bar":{"Wallet":["Wallet"]},"wallet_signup_2024:menu item":{"Bitcoin guide":["Guide de Bitcoin"],"Proton Wallet news":["Actualités Proton Wallet"],"Proton Wallet support":["Support Proton Wallet"]},"wallet_signup_2024:Pricing":{"Includes everything in Proton Unlimited and":["Comprend tout ce qui est inclus dans Proton Unlimited et"],"Limited availability":["Disponibilité limitée"],"The easiest way to securely own, send, and receive Bitcoin":["Le moyen le plus simple et sécurisé pour détenir et échanger des bitcoins"]},"wallet_signup_2024:ProductRange":{"Discover Proton Wallet":["Découvrez Proton Wallet"],"Store and transact Bitcoin privately with an encrypted self-custody wallet.":["Conservez et échangez des bitcoins en toute sécurité grâce à notre portefeuille chiffré en auto-gestion."]},"wallet_signup_2024:wallet bitcoin":{"Learn about Bitcoin, the Internet's value network.":["Découvrez le monde du Bitcoin, le réseau de valeur sur Internet."]},"wallet_signup_2024:wallet overview":{"Ensure you're always in control of your Bitcoin.":["Restez maître de vos bitcoins en toutes circonstances."]},"wallet_signup_2024:wallet security":{"The encrypted, open-source wallet that puts you in control.":["Contrôlez vos bitcoins de A à Z avec notre portefeuille chiffré open source."]}}},"base":"blog","cdn":{"enabledForAssets":true,"enabledForImages":true,"url":"https://pmecdn.protonweb.com/"},"unleashApi":"https://account.proton.me/api"};
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Introducing DKIM key management, a new feature to protect against domain name impersonation | Proton
It is now harder for hackers and spammers to impersonate Proton Mail users that have custom domain email addresses(nouvelle fenêtre). We have introduced the DKIM key management in beta, which allows you to manually rotate your DKIM keys. This is part of our continuing effort to make it more difficult for attackers to impersonate our users’ custom domains.
What is DKIM?
DKIM stands for DomainKeys Identified Mail. It is a form of email authentication that allows recipients to detect forged sender addresses, known as spoofed emails. It uses public key cryptography to verify that an email was sent from an authorized mail server and was not tampered with.
DKIM adds a digital signature, which is linked to a domain name, to the header of each outgoing email message. This signature is created with a private key that is specific to the sender’s custom domain. Each private key has a corresponding public key that is in their domain registrar’s DNS.
The server of the recipient of your message then looks up your public key in the domain registrar’s DNS. It uses that key to verify the digital signature in the header. It compares the result to a freshly computed version. If they match, then the recipient knows that the message came from and was not modified after the signature was added. If they do not match, the server will indicate to the recipient to treat the message with caution.
If that explanation didn’t make total sense, here’s a simple way to think about it. DKIM is a bit like signing a letter and putting it in an envelope. If the envelope is still sealed, the recipient knows that the letter has not been touched since you sent it. Your signature, which many people can recognize but only you can recreate, verifies to the recipient that the letter came from you. (This overly simplifies the concept, but you get the idea.)
We previously supported DKIM, but with the new key management feature, you can create new keys and the system will retire your old keys automatically. This lets you rotate your keys on a regular basis, which is important for maintaining your domain’s security.
Secure your custom domain, protect your reputation
Individuals and businesses(nouvelle fenêtre) rely on Proton Mail custom domains to build their brand. The trust customers and other individuals have in your brand can be destroyed if your email address is spoofed and used to deliver a phishing attack(nouvelle fenêtre) or fraudulent scams(nouvelle fenêtre). You can assure your contacts that you take their data protection seriously by using Proton Mail and DKIM. By regularly rotating your DKIM keys, you can ensure that no outside attacker can impersonate your email address and harm your reputation.
DKIM requires the public key to be published on your domain registrar’s DNS, which means these keys can be targeted by attackers. Hackers can access your public key and try to crack its RSA encryption. If they can crack it, then they can spoof your key and impersonate your custom domain.
Currently, 1024-bit RSA keys are on the edge of what can be cracked (given very specialized equipment and plenty of time) while 2048-bit RSA keys are considered immune to cracking. This is why we recommend you use 2048-bit keys. Still, to be safe, security experts(nouvelle fenêtre) suggest you get a new DKIM public key every six months to prevent your address from being spoofed, or anytime you fear your key may have been compromised.
How to manually replace your DKIM keys
When you first set up your custom domain, Proton Mail automatically generates a DKIM key pair for you and notifies you via email your keys are ready. Your public key will be part of a TXT record that you can find in your Proton Mail account.
You need to share your DKIM public key with your domain registrar to use DKIM.
To rotate your keys, you need to update your DNS with the new public key that we generate for you.
Whenever we introduce a new feature in beta testing, we need your feedback to help us improve it. Your reports of problems and suggestions for improvements help us make our service better. If you have feedback, please get in touch with our Support team by following these simple instructions for web(nouvelle fenêtre) and mobile(nouvelle fenêtre) devices, or connect on our social media pages listed below.
Thank you for your support. You are helping us bring freedom and privacy to millions of users worldwide.
Proton Mail and Proton VPN are funded by community contributions. If you would like to support our development efforts, you can upgrade to a paid plan(nouvelle fenêtre). Thank you for your support.
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and reputational damage? Find out how Proton Pass for Business can help you stay
safe.