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 ---"],"Adding and importing contacts":["Contactpersonen toevoegen en importeren"],"App version":["App-versie"],"Automatically save contacts":["Contactpersonen automatisch opslaan"],"Bridge connection issues with Outlook, Apple Mail or Thunderbird":["Verbindingsproblemen Bridge met Outlook, Apple Mail of Thunderbird"],"Browser":["Browser"],"Check if this helps":["Kijk of dit helpt"],"Choose a category for your question":["Kies een categorie voor uw vraag"],"Connectivity errors on Android and iOS":["Verbindingsfouten op Android en iOS"],"Contacts":["Contactpersonen"],"Custom domain":["Aangepast domein"],"Desktop notifications":["Desktopmeldingen"],"Did this solve your issue ?":["Heeft dit uw probleem opgelost?"],"Difference between Combined Addresses Mode and Split Addresses Mode":["Verschil tussen de modus Gecombineerde adressen en de modus Gesplitste adressen"],"Differences between addresses, aliases, and sub-users":["Verschillen tussen adressen, aliassen en sub-gebruikers"],"Email notifications":["E-mailmeldingen"],"Email tracking protection":["E-mailbescherming tegen tracking"],"Encryption":["Versleuteling"],"Encryption keys management":["Versleutelingscodes beheren"],"Faster assistance is just a few clicks away — please make your selections":["Snellere ondersteuning binnen een paar klikken — maak uw keuze"],"How to avoid receiving spam messages":["Spamberichten ontvangen voorkomen"],"How to block unwanted email":["Ongewenste e-mails blokkeren"],"How to configure your email client for Bridge":["E-mailclient voor Bridge instellen"],"How to create contact groups":["Groepen voor contactpersonen aanmaken"],"How to create or edit CSV contacts":["CVS-contactgegevens aanmaken of aanpassen"],"How to install Proton Mail Bridge":["Proton Mail Bridge installeren"],"How to merge duplicate contacts":["Duplicaten van contactpersonen samenvoegen"],"How to send encrypted messages to external users":["Versleutelde berichten verzenden naar externe gebruikers"],"How to set up a custom domain":["Aanmaken aangepast domein"],"How to unsubscribe from Apple’s TestFlight notification emails":["Hoe u zich afmeldt voor de TestFlight notificatie e-mails van Apple"],"How to use auto-reply":["Automatisch antwoord gebruiken"],"How to use filters":["Filters gebruiken"],"How to use folders and labels":["Gebruikmaken van mappen en labels"],"How to use PGP encryption":["PGP-versleuteling gebruiken"],"Invalid password error while setting email client for Bridge":["Ongeldig wachtwoord bij instellen e-mailclient voor Bridge"],"Login security notification alerts":["Beveiligingswaarschuwingen bij inloggen"],"Manage mailbox appearance":["Mailboxweergave beheren"],"Mobile connectivity and synchronization":["Mobiele verbinding en synchronisatie"],"No, contact support":["Nee, contact opnemen met ondersteuning"],"Notifications":["Meldingen"],"Other":["Overig"],"Problems with deleting messages":["Probleemoplossing voor verwijderde berichten"],"Problems with moving messages":["Probleemoplossing voor verplaatsen berichten"],"Problems with read/unread message status":["Probleemoplossing met berichtstatus gelezen/ongelezen"],"Proton Mail Bridge":["Proton Mail Bridge"],"Proton Mail settings":["Proton Mail-instellingen"],"Push notifications not arriving":["Pushmeldingen komen niet aan"],"Sending and receiving messages":["Berichten verzenden en ontvangen"],"Sending and receiving messages limitations":["Limitaties op berichten verzenden en ontvangen"],"Sending and receiving troubleshooting":["Probleemoplossing verzenden en ontvangen"],"Spam filtering, Allow and Block lists":["Spam filteren, geaccepteerde en blokkeringslijsten"],"Sub-users and organizations":["Sub-gebruikers en organisaties"],"Thank you for your feedback":["Bedankt voor uw feedback"],"Troubleshooting":["Probleemoplossing"],"Verify custom domain records & anti-spoofing":["Verifieer aangepaste domeingegevens en anti-spoofing"],"What can we help with ?":["Waar mogen we u bij helpen?"],"What if your domain records fail (TXT, MX, SPF, DKIM, DMARC)":["Problemen met mislukte domeinrecords oplossen (TXT, MX, SPF, DKIM, DMARC)"],"What is encrypted on Proton Mail":["Wat is versleuteld bij Proton Mail"],"Yes":["Ja"]},"support_modal_search_query":{"How to use a custom domain?":["Gebruik van een aangepast domein"],"Search query":["Zoekopdracht"]},"support_modal_search_result":{"Search result":["Zoekresultaat"]},"support_modal_title":{"Blog search":["Blogs zoeken"],"Support search":["Ondersteuning zoeken"]},"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"]},"VideoModal":{"Get started in 2 minutes":["In 2 minuten aan de slag"]},"videosButtonLabel":{"Get started with videos":["Aan de slag met video's"]},"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;
})();
Fighting Censorship with Proton Mail Encrypted Email Over Tor | Proton
As part of our efforts to continue protecting user privacy, we are launching a Tor hidden service to combat censorship and surveillance of Proton Mail users.
UPDATE October 2021: New TLS certificate. See below.
As Proton Mail has evolved, the world has also been changing around us. Civil liberties have been increasingly restricted in all corners of the globe. Even Western democracies such as the US have not been immune to this trend, which is most starkly illustrated by the forced enlistment of US tech companies into the US surveillance apparatus(new window). In fact, we have reached the point where it simply not possible to run a privacy and security focused service in the US(new window) or in the UK(new window).
At the same time, the stakes are also higher than ever before. As Proton Mail has grown, we have become increasingly aware of our role as a tool for freedom of speech, and in particular for investigative journalism. Last fall, we were invited to the 2nd Asian Investigative Journalism Conference(new window) and were able to get a firsthand look at the importance of tools like Proton Mail in the field.
Recently, more and more countries have begun to take active measures to surveil or restrict access to privacy services(new window), cutting off access to these vital tools. We realize that censorship of Proton Mail in certain countries is not a matter of if, but a matter of when. That’s why we have created a Tor hidden service (also known as an onion site) for Proton Mail to provide an alternative access to Proton Mail that is more secure, private, and resistant to censorship.
Tor Hidden Service for Encrypted Email
Starting today, it is also possible to connect to Proton Mail directly through the Tor network using our new onion site. In order to use our onion site, you need to first set up Tor on your computer. Instructions for using Proton Mail encrypted email with Tor can be found here(new window). After Tor is properly set up, Proton Mail’s onion site can be visited at the following URL:
We would like to give a special thanks to Roger Dingledine and the Tor Project(new window) for creating the Tor software and also providing insightful comments and suggestions regarding Proton Mail’s onion site implementation.
Tor Email Privacy
There are several reasons why you might want to use Proton Mail over Tor. First, routing your traffic to Proton Mail through the Tor network makes it difficult for an adversary wiretapping your internet connection to know that you are using Proton Mail. Tor applies extra encryption layers on top of your connection, making it more difficult for an advanced attacker to perform a man-in-the-middle attack on your connection to us. Tor also makes your connections to Proton Mail anonymous as we will not be able to see the true IP address of your connection to Proton Mail.
Tor can also help with Proton Mail accessibility. If Proton Mail becomes blocked in your country, it may be possible to reach Proton Mail by going to our onion site. Furthermore, onion sites are “hidden” services in the sense that an adversary cannot easily determine their physical location(new window). Thus, while proton.me could be attacked by DDoS attacks, protonirockerxow.onion cannot be attacked in the same way because an attacker will not be able to find a public IP address(new window).
Note, it is also possible to visit Proton Mail via Tor at our regular site, https://proton.me(new window), but there are several advantages to using the onion site. First, onion site connections provide true end-to-end encryption on the Tor level, meaning that the extra encryption that Tor applies is present until your connection reaches our infrastructure, whereas a non-onion Tor connection does not have Tor encryption beyond the last node. Secondly, Tor also provides end-to-end authentication, with helps to mitigate some of the weaknesses with the existing Certificate Authority system(new window) that is used to secure most of the Internet (more about this later).
Using Tor does come with some downsides however. Tor connections typically are much slower than a standard internet connection, so performance will suffer as a result. Proton Mail’s onion site is still considered to be experimental, so its reliability may not be as high as our standard site.
Since our onion site is still experimental, we are not making any recommendations yet regarding the use of Proton Mail’s onion site. Even without using Tor, your Proton Mail inbox is still strongly protected with PGP end-to-end encryption(new window), secure authentication(new window) (SRP), and optional two-factor authentication(new window). However, Proton Mail definitely has users in sensitive situations where the extra security and anonymity provided by Tor could literally save lives.
Proton Mail’s Onion Site – Technical Details
In implementing Proton Mail’s onion site, we took a few additional precautions to ensure the highest level of security to protect against advanced threats.
HTTPS with Tor
As an added security feature, we have decided to offer our onion site with HTTPS only. To accomplish this, we partnered with SSL Certificate provider Digicert(new window) to provide a valid certificate for our .onion website. Previously, Digicert issued the first-ever onion SSL certificate to Facebook(new window) and we’re glad that Digicert was able to do the same for Proton Mail.
Proton Mail’s .onion SSL certificate has Extended Validation, which provides an additional layer of protection against phishing because you can be certain that the onion site you are connecting to belongs to us. For extra security, you can also manually verify the SSL certificate for https://protonmailrmez3lotccipshtkleegetolb73fuirgj7r4o4vfu7ozyd.onion/ with the following SHA hashes.
While HTTPS is not strictly necessary for onion sites, we decided to make it mandatory for Proton Mail for several reasons:
First, we will likely take advantage of the ability to keep the location of onion sites secret by hosting our .onion website far away from our current infrastructure in an undisclosed location and country. In this situation, HTTPS adds an additional encryption layer to protect the traffic between the onion front end and our core infrastucture. HTTPS also allows us to continue enforcing the usage of secure cookies, which improves user security.
Secondly, we believe in security in depth. For this reason, we don’t believe HTTPS is entirely redundant for onion sites. If someday Tor were to be compromised, enforcing HTTPS adds another layer of security for the end user. Similarly, Tor also provides security in case HTTPS is compromised. The notion of HTTPS being compromised(new window) is one that we take seriously, considering that there are hundreds of CAs (Certificate Authorities) that are trusted by default, with many of them under direct government control in high risk countries.
Thus, by using our onion site, your emails are protected by three layers of end-to-end encryption, there’s Tor’s encryption on the outer layer, HTTPS in the middle layer, and PGP as the final layer of defense for the emails themselves.
What’s Next?
You can find a more simplified and condensed version of all of this on the following webpage we have created to give the 30-second summary of Proton Mail’s Tor support:
In the coming months, we will be hard at work making additional security and privacy enhancements to Proton Mail, including finishing some of the leftover items from our 2016 Security Roadmap(new window). Moving forward in 2017, we will be putting added focus on making Proton Mail more censorship resistant, and providing our user community with the tools required to connect securely to Proton Mail, even from compromised locations.
For questions and comment, you can reach us at media@proton.me.
Proton Mail is funded by community contributions. If you would like to support our development efforts, you can upgrade to a paid plan(new window). Thank you for your support!
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