ProtonMail v3.13 Release Notes


With version 3.13, ProtonMail now supports the much-anticipated domain name, giving users the convenience of short, easy-to-share email addresses. Plus, we’re rolling out several other time savers, from a command palette and our very first attachment previewer. short domains

Ever since ProtonMail launched, people have asked us for a shorter domain name since some feel that ‘’ is too long. On our user feedback forum, thousands of people have voted for this. We’re excited to finally make this possible. Some time ago, we were able to obtain the domain name through the ME registry.

If you have an email address like (or .ch), you can now activate Free users can receive emails at their address, while paid users can send and receive. Note, if you are a paid user, the address for your username will not count towards your address limit.

To activate, go to Settings –> in the ProtonMail web application ( Learn more about here.

Calendar event preview

We’re excited to announce our first attachment previewer. When you receive a calendar event with a .ics file extension, you no longer have to download the attachment to view it. Starting in version 3.13, we display the event directly within the ProtonMail webapp. Note, this functionality is also supported in our iOS encrypted email app, and will be coming soon to our Android app.


Merging contacts

Building on ProtonMail Contacts, the world’s first encrypted contacts manager, we’re enhancing ProtonMail contacts by adding a functionality to merge contacts. Whenever you have two Contacts entries that appear to be the same person, we give you the option to quickly merge them into one. For detailed instructions on how to use this tool, check out our support page here.

Improved signatures

Previously, ProtonMail had a feature known as the Default Signature, which allowed users to set a standard email signature that would be applied automatically to any new addresses created and linked to your account (if you are a paid user and add new addresses to your existing account). But this caused problems for people who created an anonymous alias and forgot to unset the default signature. To address this we have eliminated Default Signature. Now, the Display Name and Signature for each address must be individually set.

Right-to-left language support

We’re making ProtonMail more accessible to the more than half a billion people who use right-to-left (RTL) script. Now those with Arabic, Persian, Urdu, Hebrew or other right-to-left-language keyboards can flip on RTL mode in their composer or set RTL as the default mode under Settings -> Appearance.


Quick command palette

We’ve made it even easier to quickly manage your email with our new command palette. This is a simple in-app command line you can access by using Shift + Space bar on your keyboard. From there, you can type in basic functions, such as “mark as read,” “open composer,” “apply label,” and so on. All available actions are listed under the command line, and when you start typing the available actions are filtered.

Best Regards,
The ProtonMail Team

You can get a free secure email account from ProtonMail here.

We also provide a free VPN service to protect your privacy.

ProtonMail and ProtonVPN are funded by community contributions. If you would like to support our development efforts, you can upgrade to a paid plan or donate. Thank you for your support!

About the Author

Proton Team

Proton was founded by scientists who met at CERN and had the idea that an internet where privacy is the default is essential to preserving freedom. Our team of developers, engineers, and designers from all over the world is working to provide you with secure ways to be in control of your online data.


Comments are closed.

38 comments on “ProtonMail v3.13 Release Notes

  • Great but I thought there would be more features and fixs :(
    U2F support, ProtonMail contacts syns with Android local contacts, groups for contacts, many problems with displaying and finding links in messages, undo send, change to 4096-bit RSA key current accounts etc.

  • I have been happy with my Basic account, which suited my requirements. I am disappointed you have decided to make the on/off tag line a paid option in 3.13.

  • Previously I was able to remove ProtonMail advertisement from my signature, and now it doesn’t seem to be possible. Is this part of the improvement?

    • You can pay with PayPal but only when subscribing to an yearly plan (in USD) or when you purchase credits.

  • When will the fabled ProtonMail Calendar arrive? This is a bit of a limitation in migrating over as calendaring is really important.

    • We know and we are thankful for your patience. If all goes according to plan, we will launch ProtonMail Calendar by the end of this year.

  • I’ve been patiently waiting for calendaring support for quite some time. It’s the only thing from keeping me from making the switch into paid accounts! I need email/calendaring integration before I can do so :(

    • We are aware of this and working on the calendar as we speak. If all goes well, we will launch calendar in Q4 2018. Thank you for your patience so far.

    • We don’t have an ETA yet, but we will soon create an option to switch current keys with 4096-bit keys.

  • Dear Admin,

    My business involves exchange of sensitive information and I would like to rest assured the information sent remains confidential and duly protected. In this regard I have two questions:
    1. How much secure is 2048 bit RSA key?
    2. Will you make it possible in the future to change it to 4096 bit RSA key instead of 2048?

    Thank you.

    • 2048-bit RSA keys are still very secure and will remain so for at least another 5-10 years. We will also create an option soon to replace your key with 4096-bit keys.

  • Thanks for your work with ProtonMail :)

    I’m about to change from GMail to ProtonMail but I’m missing nested folders. Is this somthing you have on roadmap?

  • something is with the ui weird
    read a mail from a mailinglist (+10 response), that has a reply and then another: scroll to back (newest) and expand all older ones from bottom to top, then read from top to bottom – should expand automatic when scroll or have a button ‘expand all.

    select a mail in the inbox, mail get readable full screen, ok, go back? click again on inbox, first message is selected&displayed. should have a button history-back so the clicked message from before is higlight

    find a mail in spam, skim it and decide it’s not (click move to inbox), inbox is shown, newest first – where is the mail i just un-spammed? should be highlighted, regardless of age.

    anyway its great the way it works too – protonmail is one of the nicest interfaces i like use. can you please opensource after return of investment?

  • Hello, thank you for the blog and everything you all are doing at Protonmail. After a few years of being a free account member then moving to Plus, I just signed up for your Visionary account, dumped Google completely, which means my calendar is gone as well. I read here you will be launching Calendar Q4 2018 which is why I moved o Visionary now. Please keep this schedule or sooner as I know many see the Calendar a very important part of the Protonmail experience and critical to our workflow. Thank you again, Kudos to a great platform.

    • Hi, Tom! Thank you so much for supporting us. It really means a lot. After planning and breaking down everything, we evaluate the work for calendar to extend to 2019 because it is a very complex project. We appreciate your patience as we understand how important the calendar is for our users.

  • So when is the “+” issue in alias going to be fixed? Fixed as in removed and changed to something accepted in 100% of online forms. Or, is the rest of the internet still broken but Protonmail is OK?

    • Can you please clarify what is the issue that you are referring to? Thank you in advance.

  • Hi, is it possible to type in Korean language in Protonmail??? If so, how?? Require an urgent revert!

    • Hi! It is not possible at the moment but we are constantly working on adding new languages. Thank you for your patience.