all-in-one privacy solution":["Proton Unlimited is een all-in-one privacy-oplossing"],"Black Friday":["Black Friday"],"No ads. Privacy by default.":["Geen advertenties. Standaard privacy."],"People before profits":["Mensen vóór winst"],"Security through transparency":["Veiligheid door openheid"],"The best Proton Mail ${ BLACK_FRIDAY } deals":["De beste ${ BLACK_FRIDAY }-deals voor Proton Mail"],"The world’s only community- supported email service":["'s Werelds enige door de community ondersteunde e-mailservice"]},"specialoffer:limited":{"${ hours } hour":["${ hours } uur","${ hours } uur"],"${ hoursLeft }, ${ minutesLeft } and ${ secondsLeft } left":["Nog ${ hoursLeft }, ${ minutesLeft } en ${ secondsLeft } resterend"],"${ minutes } minute":["${ minutes } minuut","${ minutes } minuten"],"${ seconds } second":["${ seconds } seconde","${ seconds } seconden"],"Limited time offer":["Aanbieding beperkt geldig"]},"specialoffer:listitem":{"Create multiple addresses":["Maak meerdere e-mailadressen aan"],"Hide-my-email aliases":["Hide-my-email-aliassen"],"Quickly unsubscribe from newsletters":["Meld u eenvoudig af voor nieuwsbrieven"],"Use your own domain name":["Gebruik uw eigen domeinnaam"]},"specialoffer:logos":{"As featured in":["Zoals te lezen in"]},"specialoffer:metadescription":{"Get an encrypted email that protects your privacy":["Kies voor beveiligde e-mail die uw privacy beschermt"]},"specialoffer:metatitle":{"Proton Mail Black Friday Sale - Up to 40% off":["Proton Mail Black Friday Sale - Tot 40% korting"]},"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.":["Profiteer tijdens Black Friday van wel 40% korting op Proton Mail-abonnementen. Bekijk geweldige aanbiedingen voor onze veilige, end-to-end versleutelde e-mailabonnementen."]},"specialoffer:newmetatitle":{"Proton Mail Black Friday sale | Up to 40% off secure email":["Proton Mail Black Friday Sale | Tot 40% korting op veilige e-mail"]},"specialoffer:note":{"* Billed at ${ TOTAL_SUM } for the first year":["*U betaalt ${ TOTAL_SUM } voor het eerste jaar"],"*Billed at ${ TOTAL_SUM } for the first 2 years":["*U betaalt ${ TOTAL_SUM } voor de eerste 2 jaar"],"30-day money-back guarantee":["30 dagen niet-goed-geld-terug-garantie"],"Billed at ${ TOTAL_SUM } for the first 2 years":["U betaalt ${ TOTAL_SUM } voor de eerste 2 jaar"],"Billed at ${ TOTAL_SUM } for the first year":["U betaalt ${ TOTAL_SUM } voor het eerste jaar"],"You save ${ SAVE_SUM }":["U bespaart ${ SAVE_SUM }"]},"specialoffer:off":{"${ DISCOUNT } off":["−${ DISCOUNT }"],"${ PERCENT_OFF } off":["−${ PERCENT_OFF }"]},"specialoffer:testimonial":{"I love my ProtonMail":["Ik ben fan van ProtonMail"],"My favorite email service":["Mijn favoriete e-mailservice"],"Thanks Proton for keeping us all safe in the complicated internet universe.":["Proton houdt ons allemaal veilig in het complexe internetuniversum."],"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":["Je krijgt waarvoor je betaalt. In het geval van Big Tech betekent 'gratis' dat je wordt gebruikt. Ik ben gestopt met Gmail en overgestapt op @ProtonMail"]},"specialoffer:time":{"Days":["Dagen"],"Hours":["Uur"],"Min":["Min"]},"specialoffer:title":{"And much more":["En nog veel meer"],"Make your inbox yours":["Personaliseer uw inbox"],"Safe from trackers":["Beschermd tegen trackers"],"Stay organized":["Houd overzicht"],"Black Friday email deals":["Black Friday-deals voor e-mail"],"Don’t just take our word for it":["U hoeft ons niet te geloven"],"Our story":["Ons verhaal"],"Transfer your data from Google in one click":["Zet uw gegevens van Google over met één klik"]},"specialoffer:tooltip":{"Access blocked content and browse privately. Includes ${ TOTAL_SERVERS }+ servers in ${ TOTAL_COUNTRIES }+ countries, connect up to 10 devices, access worldwide streaming services, malware and ad-blocker, and more.":["Bekijk geblokkeerde inhoud en surf privé. Met ${ TOTAL_SERVERS } servers in meer dan ${ TOTAL_COUNTRIES } landen, verbinding met maximaal 10 apparaten, wereldwijd toegang tot streamingdiensten, malware- en advertentieblokkering, en meer."],"Easily share your calendar with your family, friends or colleagues, and view external calendars.":["Deel uw agenda eenvoudig met uw familie, vrienden of collega's, en bekijk externe agenda's."],"Includes support for 1 custom email domain, 10 email addresses, 10 hide-my-email aliases, calendar sharing, and more.":["Ondersteuning voor 1 aangepast e-maildomein, 10 e-mailadressen, 10 hide-my-email-aliassen, gedeelde agenda's en meer."],"Includes support for 3 custom email domains, 15 email addresses, unlimited hide-my-email aliases, calendar sharing, and more.":["Ondersteuning voor 3 aangepaste e-maildomeinen, 15 e-mailadressen, onbeperkt hide-my-email-aliassen, gedeelde agenda's en meer."],"Manage up to 25 calendars, mobile apps, secured with end-to-end encryption, 1-click calendar import from Google, and more.":["Beheer tot 25 agenda's, mobiele apps, beveiligd met end-to-end versleuteling, agenda's van Google importeren met 1 klik, en meer."]},"Status Banner":{"At the moment we are experiencing issues with the Proton VPN service":["Momenteel werkt de dienst van Proton VPN niet naar behoren"],"Learn more":["Meer informatie"]},"Status banner":{"Learn more":["Meer informatie"],"Please note that at the moment we are experiencing issues with the ${ issues[0] } service.":["We ondervinden op dit moment problemen met de ${ issues[0] }service."],"We are experiencing issues with one or more services at the moment.":["We ondervinden momenteel problemen met een of meer services."]},"suggestions":{"Suggestions":["Suggesties"]},"Support":{"Sub category":["Subcategorie","Subcategorieën"]},"Support article":{"${ readingTime } min":["${ readingTime } min","${ readingTime } min"],"Category":["Categorie","Categorieën"],"Didn’t find what you were looking for?":["Niet gevonden wat u zocht?"],"General contact":["Algemene contactgegevens"],"Get help":["Krijg hulp"],"Legal contact":["Contactgegevens voor juridische zaken"],"Media contact":["Contactgegevens voor media"],"Partnerships contact":["Contactgegevens voor partnerschappen"],"Reading":["Lezen"]},"Support categories":{"Browse Proton product support":["Zoeken in Proton-productondersteuning"]},"Support category":{"There is no article in this category yet.":["Er zijn nog geen artikelen in deze categorie."]},"Support troubleshooting":{"--- Select ---":["--- Selecteren ---"],"App version":["App-versie"],"Browser":["Browser"],"Check if this helps":["Kijk of dit helpt"],"Choose a category for your question":["Kies een categorie voor uw vraag"],"Choose a product":["Kies een product"],"Did this solve your issue ?":["Heeft dit uw probleem opgelost?"],"Faster assistance is just a few clicks away — please make your selections":["Snellere ondersteuning binnen een paar klikken — maak uw keuze"],"No, contact support":["Nee, contact opnemen met ondersteuning"],"Proton account":["Proton-account"],"Proton Bridge":["Proton Bridge"],"Proton Calendar":["Proton Calendar"],"Proton Drive":["Proton Drive"],"Proton for Business":["Proton for Business"],"Proton Mail":["Proton Mail"],"Proton Pass":["Proton Pass"],"Proton VPN":["Proton VPN"],"Thank you for your feedback":["Bedankt voor uw feedback"],"Troubleshooting":["Probleemoplossing"],"What can we help with ?":["Waar mogen we u bij helpen?"],"Yes":["Ja"]},"support_modal_search_query":{"Search query":["Zoekopdracht"]},"support_search_button":{"Search":["Zoeken"]},"support_search_i_am_looking_for":{"I'm looking for":["Ik ben op zoek naar"]},"SupportForm":{"For a faster resolution, please report the issue from the Bridge app: Help > Report a problem.":["Om problemen sneller op te lossen, meldt u het via de Bridge-app: Help > Een probleem melden."],"Information":["Informatie"]},"SupportForm:option":{"Account Security":["Accountbeveiliging"],"Contacts":["Contactpersonen"],"Custom email domain":["Aangepast e-maildomein"],"Email delivery and Spam":["E-maillevering en spam"],"Encryption":["Versleuteling"],"Login and password":["Inlognaam en wachtwoord"],"Merge aliases and accounts":["Aliassen en accounts samenvoegen"],"Migrate to Proton":["Migreren naar Proton"],"Notifications":["Meldingen"],"Other":["Overig"],"Plans and billing":["Abonnementen en facturering"],"Proton for Business":["Proton for Business"],"Sign up":["Inschrijven"],"Storage":["Opslag"],"Users, addresses, and identities":["Gebruikers, adressen en identiteiten"]},"SupportForm:optionIntro":{"Select a topic":["Kies een onderwerp"]},"swiss_baseed_feature":{"Swiss based":["Gevestigd in Zwitserland"]},"Testimonial":{"Awards":["Awards"],"Customers":["Klanten"],"Featured":["Featured"],"Go to testimonial source":["Naar bron van testimonial"],"Reviews":["Reviews"],"Videos":["Video's"]},"Text":{"Find the plan that's right for you":["Vind het abonnement dat bij u past"],"If you need help, check out our ${ supportLink }.":["Bekijk onze ${ supportLink } als u hulp nodig hebt."],"The page you’re looking for might have been removed, or it could be an\nold link.":["De pagina waarnaar u op zoek bent, is mogelijk verwijderd, of u gebruikt een oude koppeling."]},"Title":{"On this page":["Op deze pagina"],"Related articles":["Gerelateerde artikelen"],"Share ${ thisPage }":["${ thisPage } delen"],"Thank you!":["Bedankt!"],"this page":["deze pagina"]},"Tooltip":{"More information":["Meer informatie"]},"tooltip_calendar":{"Create up to 20 custom & shareable encrypted calendars. On top of that, add up to 5 calendars from friends, family, colleagues, and organizations.":["Maak tot 20 aangepaste en deelbare versleutelde agenda's aan. Voeg daar bovenop tot 5 agenda's toe van vrienden, familie, collega's en organisaties."]},"tooltip_vpn":{"Access blocked content and browse privately. Includes ${ TOTAL_SERVERS }+ servers in ${ TOTAL_COUNTRIES }+ countries, highest VPN speed, ${ TOTAL_VPN_CONNECTIONS } VPN connections, worldwide streaming services, malware and ad-blocker, and more.":["Bekijk geblokkeerde inhoud en surf privé. Met meer dan ${ TOTAL_SERVERS } servers in meer dan ${ TOTAL_COUNTRIES } landen, de hoogste VPN-snelheid, ${ TOTAL_VPN_CONNECTIONS } VPN-verbindingen, wereldwijde streamingdiensten, malware- en advertentieblokkering, en meer."],"Access blocked content and browse privately. Includes ${ TOTAL_SERVERS }+ servers in ${ TOTAL_COUNTRIES }+ countries, highest VPN speed, 10 VPN connections, worldwide streaming services, malware and ad-blocker, and more.":["Bekijk geblokkeerde inhoud en surf privé. Met meer dan ${ TOTAL_SERVERS } servers in meer dan ${ TOTAL_COUNTRIES } landen, de hoogste VPN-snelheid, 10 VPN-verbindingen, wereldwijde streamingdiensten, malware- en advertentieblokkering, en meer."]},"version_history_label":{"Version history":["Versiegeschiedenis"]},"version_history_tooltip":{"Store up to ${ versionHistoryNumber } versions of each file for up to ${ years } years":["Bewaar tot ${ versionHistoryNumber } versies van elk bestand tot wel ${ years } jaar"]},"vpn_features_link":{"View VPN plans":["VPN-abonnementen bekijken"]},"vpn_features_useCase":{"Access blocked content and browse privately":["Bekijk geblokkeerde inhoud en surf privé"]}}},"unleashApi":"https://account.proton.me/api"};
// We need to import data (the framework context) from the server
// This Astro feature with define:vars works well but creates an inline script
// So we can't directly import the initFramework helper, we have to store the context
window.frameworkContext = frameworkContext;
})();
Introducing Proton Mail Bridge, email encryption for Outlook, Thunderbird, and Apple Mail | Proton
Today we are officially launching Proton Mail Bridge, which brings easy-to-use email encryption to desktop email clients.
Ever since the day that we first got the idea to create Proton Mail, one of the most enduring challenges has been how to do email security right while simultaneously making encrypted email easy enough to use for normal people. Since our early days working from the CERN cafeteria(new window), we have been working tirelessly to address this specific problem.
In the years since, we have made many great strides towards creating usable encrypted email, first with Proton Mail’s webmail interface and then with our award-winning(new window)iOS(new window) and Android(new window) secure email apps. However, one of our goals has always been to bring easy-to-use encrypted email to desktop. The problem is formidable. Desktop systems encompass multiple operating systems with dozens of popular email clients with their own adherents, and virtually none of them natively speak PGP, the email encryption standard upon which Proton Mail is built.
Around two years ago, we created a small task force to tackle this challenge. Today, we are finally ready to present Proton Mail Bridge(new window).
(new window)What is the Proton Mail IMAP/SMTP Bridge?
In a single sentence, Proton Mail Bridge is an application that allows you to use your Proton Mail encrypted email account with your favorite desktop email client such as Thunderbird, Apple Mail, or Outlook, while simultaneously retaining the zero-access encryption and end-to-end encryption that Proton Mail provides. The best part is that this does not require modifying your email client or making changes to your existing workflow. Use email like you have always used it, and the Bridge will automatically encrypt and decrypt messages in the background.
How does the Proton Mail Bridge work?
The Bridge is an app that you download(new window) and install locally on your desktop or laptop computer and it runs automatically in the background.
The Bridge essentially acts like a local email server (using the IMAP and SMTP protocols) and interacts with email clients also installed locally on your desktop computer. As a result, all encryption and decryption occur locally and thus the benefits of end-to-end encryption remain. The Bridge communicates with Proton Mail’s encrypted email server via our API, which supports end-to-end encryption, while email clients can communicate directly with the Bridge via standard IMAP and SMTP. In this way, standard email clients which do not natively support end-to-end encryption can support encryption without modification. Another way to think of it is that the Proton Mail Bridge translates end-to-end encrypted email data into a language that any email client can understand, thus “bridging” the gap between Proton Mail’s end-to-end encryption and your standard email client.
One of the powerful benefits of using the Bridge and email apps like Thunderbird, AppleMail, and Outlook is being able to use full-body text search within your encrypted emails. The Bridge decrypts messages as they arrive in your computer and delivers them to your desktop email client. These local copies are stored on your computer, so the search features of your desktop client work normally and you can search within your encrypted emails.
Another powerful benefit of the Bridge is being able to have multiple accounts added to an email client. For example, many users will have both a Gmail account and a Proton Mail account. In this scenario, you could simply drag messages between accounts using Thunderbird (for example). This essentially enables you to drag and drop an existing Gmail account into a new Proton Mail account as a way of doing “Account Import” (a dedicated account import and export tool is currently under development). Similarly, for users who want a backup of their Proton Mail data, most native email clients let you mass export your data and download it. You can also have multiple Proton Mail addresses and accounts in a single email client, and move messages between your Proton Mail accounts.
Threat Model
The Bridge preserves end-to-end email encryption, and also zero-access encryption (meaning that even we cannot read your emails). However, the Bridge does not protect your emails from end-point compromise (e.g. compromised laptop). Since the Bridge decrypts data locally, it’s important to ensure that your computer is safe. If someone breaks into your computer while using the Bridge, the unencrypted data could potentially be viewed as well.
During the installation process, the Bridge will auto-generate a “Bridge Password”. This Bridge Password is used to setup and configure your email clients. In this way you don’t need to trust your email client with your secret Proton Mail password.
JavaScript Cryptography and Open Source
Because the Bridge is locally installed, it is like our mobile apps in that it does not do decryption in a browser. Therefore, the Bridge also guards against the threat vector of somebody compromising the connection between you and Proton Mail in order to send you bad JavaScript code, or Proton Mail getting compromised and serving a malicious webpage to users.
Furthermore, after the technical documentation of the Proton Mail Bridge code is done, we will be releasing the source code of the Bridge, so that you can even compile it yourself instead of getting the binaries from us, so there is even less need to trust us. This is an important step in our work to eliminate Proton Mail itself as a threat vector.
Using the Proton Mail Bridge
The Bridge software is easy to set up and use. The setup process consists of:
Installing the Bridge app
Adding your Proton Mail account to the Bridge
Adding your Proton Mail account to your email client (Thunderbird, Apple Mail, Outlook)
Configuring your email client’s settings (ports, password, etc).
Currently, the officially supported email clients are Thunderbird, Apple Mail, and Outlook, on both Windows and MacOS (Linux is coming in Spring of 2018). However, in theory, any IMAP email client can work with the Bridge, and in our beta testing, many were shown to work. If you are a paid Proton Mail user, you can immediately get started here:
Finally, we would like to thank the thousands of Proton Mail users who participated in the Bridge Beta over the past year. Your support and feedback was invaluable towards bringing the Bridge to fruition, and we look forward to making Proton Mail even better for the community.
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. Thank you for your support!
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