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(e)"],"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":["Appropriez-vous totalement votre boîte de réception"],"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 Apple TV":["VPN pour Apple 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"]},"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_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, ${ TOTAL_VPN_CONNECTIONS } connexions VPN, l'accès aux services de streaming dans le monde entier, un bloqueur de logiciels malveillants et de publicités et bien plus encore."]},"vpn_servers":{"Get Proton VPN Plus":["Je choisis Proton VPN Plus"]},"wallet_signup_2024:Action":{"Get Proton Wallet":["Obtenir Proton Wallet"]},"wallet_signup_2024:Homepage hero product link title":{"Wallet":["Wallet"]},"wallet_signup_2024:Homepage product navigation bar":{"Wallet":["Wallet"]},"wallet_signup_2024:menu item":{"Bitcoin guide":["Guide de Bitcoin"],"Proton Wallet news":["Actualités Proton Wallet"],"Proton Wallet support":["Support Proton Wallet"]},"wallet_signup_2024:Pricing":{"Includes everything in Proton Unlimited and":["Comprend tout ce qui est inclus dans Proton Unlimited et"],"Limited availability":["Disponibilité limitée"],"The easiest way to securely own, send, and receive Bitcoin":["Le moyen le plus simple et sécurisé pour détenir et échanger des bitcoins"]},"wallet_signup_2024:ProductRange":{"Discover Proton Wallet":["Découvrez Proton Wallet"],"Store and transact Bitcoin privately with an encrypted self-custody wallet.":["Conservez et échangez des bitcoins en toute sécurité grâce à notre portefeuille chiffré en auto-gestion."]},"wallet_signup_2024:wallet bitcoin":{"Learn about Bitcoin, the Internet's value network.":["Découvrez le monde du Bitcoin, le réseau de valeur sur Internet."]},"wallet_signup_2024:wallet overview":{"Ensure you're always in control of your Bitcoin.":["Restez maître de vos bitcoins en toutes circonstances."]},"wallet_signup_2024:wallet security":{"The encrypted, open-source wallet that puts you in control.":["Contrôlez vos bitcoins de A à Z avec notre portefeuille chiffré open source."]}}},"base":"blog","cdn":{"enabledForAssets":true,"enabledForImages":true,"url":"https://pmecdn.protonweb.com/"},"unleashApi":"https://account.proton.me/api"};
window.frameworkContext = frameworkContext;
const context = frameworkContext.base === '' ? '' : `${frameworkContext.base}/`;
window.__toAssetUrl = (filename) => {
if (frameworkContext.cdn !== undefined && frameworkContext.cdn.enabledForAssets === true) {
return `${frameworkContext.cdn.url}${context}${filename}`;
} else {
return `/${context}${filename}`;
}
};
})();
Many of you might have noticed that Proton Mail had a brief scheduled downtime last week. That was actually the first step of a major infrastructure upgrade that we have just completed. Thanks to the support from our crowdfunding contributors(nouvelle fenêtre) and around-the-clock work of our team, Proton Mail today is more secure and reliable than it has ever been, even with the huge number of additional users we have recently invited from the waiting list.
For those users who have been on our waiting list for several months, the wait will soon be over as our new infrastructure will allow us to support almost everybody. We will be inviting nearly everybody over the next month!The reason it has taken us so long to get to this point is because building an email architecture that is secure, scalable, and also reliable is no easy task. In this post, we will be describing some of the work the Proton Mail team has been doing in the past couple months to keep your data safe.
Hardware and Network
Proton Mail’s infrastructure scaling is complicated by the fact that we run our own servers which means we also need to build in redundancy on the hardware and network level which greatly increases the required effort. Fortunately, our team has worked on building and managing large scale systems at CERN(nouvelle fenêtre) and are able to draw from that experience.
Because Proton Mail’s encryption is zero access and we do not have the ability to read our user’s encrypted data, in some ways, it does not matter where we store encrypted data. However, as we have seen in the past, third parties simply cannot be trusted(nouvelle fenêtre) to safeguard online privacy and freedom. The ONLY way to ensure the highest level of data security and uptime is to have full control over the server hardware and network. This is why despite the added difficulty and complexity, we go a step beyond and only use hardware that we physically own and control within Switzerland to host Proton Mail.
All of our servers feature fully encrypted disks and we use RAID arrays with high redundancy for our storage. The redundancy even extends to the way we power our servers. Within each datacenter, only half of our servers are connected to a single power unit so a failure of an upstream power unit cannot take all servers offline.
Datacenter Redundancy
While we have excellent redundancy within our main datacenter, to ensure even higher reliability, Proton Mail began to build out in a second datacenter this summer. Today, Proton Mail’s hardware infrastructure is spread out across two datacenters in Switzerland to ensure that a catastrophic disaster at one datacenter will not lead to data loss. In a follow up post, we will talk more about Proton Mail’s datacenters.
Infrastructure Architecture
The diagram below gives a high level overview of Proton Mail’s latest architecture after last week’s upgrade. The overarching design philosophy is to eliminate as many single points of failure as possible in order to make Proton Mail the most reliable encrypted email service ever built.
Load Balancing
As Proton Mail’s userbase grew, we rapidly exceeded the capacity of a single server which made it necessary to load balance across multiple servers. Our load balancing system splits the load among multiple web and mail servers and also provide instantant failover in the event of a web or mail server crash.
Web Servers
All Proton Mail servers (web servers included) exclusively run open source software and are Linux based. Our architecture allows additional web servers to be added without downtime. Furthermore, any individual web servers can be taken offline without impacting users. This gives full redundancy in the event of a web server failure, and also allows us to take machines offline at any time to perform security updates.
Mail Servers
Proton Mail’s mail infrastructure is also fully redundant and any mail server can fail without impacting inbound or outbound mail deliverability. Our mail software architecture also allows us to buffer mail on the mail servers. This means in the event of a database failure, mail servers can save incoming messages until the database servers come back online so a database failure will not lead to the loss of incoming messages.
Database Layer
We use a cluster of database servers to store encrypted user messages. We have multiple SQL servers with automatic failover which allows us to lose SQL servers without system downtime. The data servers are clusterized so that individual data servers can be lost without leading to data loss or downtime.
As an additional layer of security, we have a backup data cluster which replicates from the master cluster in real time so in the event of a catastrophic failure of the primary cluster, we can switch to the backup with minimal data loss.
DNS
For added security against DNS attacks and better control over our domain, Proton Mail also runs our own DNS infrastructure which is distributed between our two datacenters for redundancy. Our DNS root zone is managed by SWITCH(nouvelle fenêtre) which administers .ch domain names on behalf of the Swiss Federal Office of Communications (OFCOM).
Monitoring
Proton Mail utilizes a sophisticated monitoring system that is also distributed between two datacenters in order to monitor the health of our hardware and also detect for potential network intrusions or abnormalities.
Looking Forward
When Proton Mail was first opened to the public back in May, our architecture at that time was run on just two servers (a primary and a backup) and was rapidly overloaded(nouvelle fenêtre) by users from around the world. Our current architecture is a huge advancement from that and would not have been possible without many months of hard work from our team and the support of our crowdfunding contributors(nouvelle fenêtre).
There is still much infrastructure work to be done and we will continue to add improvements on two main fronts. First, we will keep pushing to eliminate single points of failure to reduce the risk of downtime. Secondly, we will work on bringing more components of the internet infrastructure needed to run Proton Mail under our direct control to improve privacy and reliability. We recently took a step in this direction by joining Réseaux IP Européens NCC and becoming a Local Internet Registry which serves Proton Mail exclusively. As you can see, we are far from done and 2015 will certainly be a busy year!