ProtonMail v3.9 Release Notes

Note: Due to the way we roll out new versions, ProtonMail 3.9 has not been released to everyone yet. If you do not see it yet, you will see it soon.

Over the past 3 months, we have been focused on large scale projects, such as ProtonVPN and also the upcoming IMAP/SMTP support for ProtonMail. Version 3.9 however brings several incremental changes and sets the stage for the additional releases we have planned for this summer. We expect in the next couple months to increase the speed of new ProtonMail releases.

ProtonMail does not show advertisements or abuse your privacy to make money. Paid accounts are our only source of funding. Please consider upgrading to a ProtonMail Plus account so that we can continue to operate the service and fund further development.

Drag & Drop Messages

This feature allows to organize your inbox quick and easy by making use of your custom folders/labels. Just hold down your message and drag it into the appropriate folder/label.

Improved Search

We have made further performance improvements to search and now it is approximately 1000x faster than it was a few months ago. We have also made ProtonMail’s advanced search feature more powerful. Now, advanced search will also accept complex queries such as this:

(cat -dog) | (cat mouse)

You can learn about ProtonMail’s improved search here.

Note that search still does not work for ProtonMail message bodies, as we do not have the ability to read your messages. However, we are working on a project now that will enable full-text search of your ProtonMail messages and we hope to have the first public release near the end of this summer.

Improved Language Support

The ProtonMail Translation Project has now been underway for several months, and thanks to the incredible volunteer translators from the community, ProtonMail’s web interface is now available in the following languages: French, German, Russian, Spanish, Polish and Turkish.

To change the language of your ProtonMail webmail interface, go to Settings –> Account –> Language.

We are still looking for additional volunteers for the ProtonMail translation project so if you would like to see ProtonMail in your language or help to improve an existing translation, you can participate in the translation project by signing up here.

Auto Unsubscribe

The auto-unsubscribe feature makes it easier to unsubscribe from email lists or newsletters that you’re not keen on receiving anymore. It works by identifying the unsubscribe link in the hidden header and by making it available in the top right corner of your message. To remove your email address from mailing lists, just click “Unsubscribe”.


After more than 1 year of development, and four months of beta testing by over 10’000 members of the ProtonMail community, we’re finally making ProtonVPN available to everyone. And we really mean everyone, because consistent with our mission to make privacy and security accessible to every single person in the world, we’re also releasing ProtonVPN as a free VPN service.

ProtonVPN is now integrated into the ProtonMail dashboard, which means you can upgrade to the paid version of ProtonVPN from Settings –> Dashboard

buying protonvpn

Note: If you are a ProtonMail Plus user, you can get a 20% discount bundle when signing up for ProtonVPN. This discount is shown at checkout. Also, ProtonVPN Visionary users get ProtonVPN Plus for free.

You can also manage your ProtonVPN settings now from ProtonMail Settings, by clicking on the VPN tab:

You can learn more about ProtonVPN by going here:

Version 3.9 Full Release Notes

New Features

  • Update Dashboard and VPN tab for the ProtonVPN release
  • Drag & Drop Elements
  • Added translations for French, German, Russian, Spanish, and Turkish
  • New sent/drafts behaviour. By default, Sent and Drafts folders will no longer show trashed or moved messages. However, the old behavior can be restored by adjusting the setting in Settings –> Account.
  • Improved Search released
  • Added auto-unsubscribe from mailing lists feature

Bug Fixes

  • Fixed problem with links not working on Safari
  • Fixed problem with displaying plaintext messages


  • Added folder context to showing read/unread conversations in folders
  • Improved the browser message caching
  • Improved custom filters UI
  • Increased search speeds by 1000x
  • Improved the settings screens for setting display names and signatures for extra addresses to be less confusing

As always, your feedback is appreciated. Please report bugs using ProtonMail report bug feature, or send us a support request here:

About the Author

Irina M

Irina is part of ProtonMail's communication team. With a background in graphic design and digital communications, she strongly supports the protection of private data and wishes to help build a safer internet for generations to come.


Comments are closed.

35 comments on “ProtonMail v3.9 Release Notes

  • The Bizarre Sent behaviour has been Addressed in v3.9
    THANK YOU, I shall now be renewing my Subscription.

  • Does the Protonvpn also mask DNS? Also, usually vpns issue is downtimes or that it will shut off automatically due to a server update. How often does this happen with Protonvpn?

      • Thanks for your response, but you didn’t answer my other question. How often does Protonvpn have server downtime? Have you guys taken necessary pre-cautions so we aren’t exposed when Protonvpn servers are down?

        • It is very rare. If you are using the Windows app, we have a kill switch that prevents accidental exposure if the connection is dropped for some reason.

  • Hello!

    Many improvements! The translation it’s great, and many other under the hood.
    I have a suggestion in pricing plan. Maybe a plan between free and Plus. With a half storage, half address, half labels and support limited, for a half of money (or less :) )

    Happy hacking

  • Nice stuff!

    I’m looking forward to trying out the new search query possibilities. I love the drag and drop as well, and am happy to see that Protonmail keeps getting better and better with each release.

  • Just one question, guys – when do you plan to open the sub-users option to the usual paid users? If only I could get one sub-user and let my partner to have his own closed inbox on our mutualy paid account… this would be amazing…

  • Will imap support mean one could finally backup protonmail accounts? I tested the visionary package but without imap access for backup support this is totally unviable for anyone really. I wanted to cancel it however with imap support so that i can backup my mails this would get me to stay for sure.

    • IMAP support is coming along soon, we hope to release it later this year. Thank you for your patience!

      • Great news!!!, I´m waiting for this funcionality to get ride of my other accounts… and go for paid subscription.

  • WHERE IS PROTONMAIL DESKTOP, stop working on IMAP and POP3 support and make a ProtonMail Desktop client

    • They are not working on POP3-Support, but only IMAP (as far as I understand protonmail bridge).
      If you have IMAP, you can use any desktop client, no need to reinvent the wheel. Just use the one you like most, be it apple mail, Outlook, Thunderbird, Bat! or whatever…

  • Looks good!
    When do you plan to have a “download all attachment” button?
    It would make life much easier when dowloading lots of attachments.


  • About “Fixed problem with displaying plaintext messages”:

    Could you please elaborate? Have you fixed the problem with links in plaintext messages that weren’t rendered as links? (web and mobile version of ProtonMail)

  • Do you have any estimate for the dates of the IMAP support? Am very waiting for this feature!

    • It should be more widely available before the end of this year (it is in closed beta right now).

  • Why does use COMODO CA instead of QuaVadis Limited as a ssl certificate authority? Also why does use COMODO CA instead of QuaVadis Limited for a certificate authority? I do not feel safe using protonvpn if it is hosted somewhere beyond the Protonmail team’s control.

  • Great release, loving it. The improved search is good, but still not really usable without mail body search. Looking very much forward for this feature, this is imho _the_ most relevant feature for a web-based mail system! Thanks for your efforts!!

  • Great release, thank you very much for all your efforts!

    Please hurry with the full text/mail body search, this is a really important feature, imho currently the most pressing one!

  • hi guys,

    “The ability to change key strength will be coming in a future ProtonMail release” – could you share any estimation for that feature?
    Also will it be possible to use/upload own PGP keys?

  • Bummed that despite being a paid customer on multiple devices & platforms I wasn’t allowed to join the closed IMAP beta.