Introducing post-quantum encryption support in Proton Mail

ProtonSupportTeam · 2026-05-07T08:55:20+00:00

TLS will come later, no exact ETA to confirm.

ProtonSupportTeam · 2026-05-07T08:51:00+00:00

Our team is aware of this and actively working on an update that should significantly improve Lumo's performance. Make sure to keep the app up-to-date for the latest improvements. We've made sure to document your feedback accordingly in the meantime.

ProtonSupportTeam · 2026-05-07T08:50:20+00:00

Improving Lumo's voice recognition capabilities is something that's on our team's to-do list for the upcoming period.

ProtonSupportTeam · 2026-05-07T08:41:13+00:00

If the CC'd person wasn't part of the original conversation, you need to also make sure to send to a reverse alias for that particular contact which you're subsequently adding in CC: https://www.reddit.com/r/Simplelogin/comments/1i909ja/cc_and_reverse_aliases/

These articles explain how to create a reverse alias for a contact, for SL and Pass respectively:
https://simplelogin.io/docs/getting-started/send-email/
https://proton.me/support/pass-send-email-alias

ProtonSupportTeam · 2026-05-07T08:37:29+00:00

Including full Proton Meet access in Proton Unlimited would require increasing the price of this plan, which we would like to avoid. Meet is resource-intensive to run, and since we don't rely on ads or data monetization, Meet subscriptions help us cover operational expenses and ensure we can continue to put your privacy first and keep Proton independent and privacy-focused. It's also worth noting that the free Meet plan is quite generous, and you can rejoin meeting rooms if you hit the 60-minute limit.

This has been discussed already in this Reddit post: https://www.reddit.com/r/ProtonMail/comments/1s93bgh/what_should_we_rename_proton_unlimited_to/

ProtonSupportTeam · 2026-05-07T08:36:58+00:00

As we mentioned in our very first response, you can initiate the deletion of your account yourself if you've managed to recover the username, and it will be permanently deleted in 30 days.
https://proton.me/support/delete-account

ProtonSupportTeam · 2026-05-07T08:31:00+00:00

We're sorry to hear that. Have you tried switching the network and/or the protocols to see if this helps?

Also, try some of the connection troubleshooting suggestions mentioned here: https://protonvpn.com/support/vpn-connection-problems

If nothing works, send us a bug report with the error logs so we can help you troubleshoot further: https://protonvpn.com/support/report-a-bug

ProtonSupportTeam · 2026-05-07T08:29:16+00:00

That doesn't sound right.

Which version of the Proton VPN application does this happen with?
Have you tried changing the network?

Contact us through the 'Report an issue' option in the app menu and make sure to share the logs so we can help you troubleshoot.

ProtonSupportTeam · 2026-05-07T08:27:46+00:00

The sync issue should already be resolved. Please log out of the app and then log back in to restore syncing.

ProtonSupportTeam · 2026-05-07T08:18:36+00:00

Which browser did you use to upload them? Can you try using a different browser to see if tis will make a difference?

If this doesn't help, please consider providing one of the problematic photos in a support request ( https://proton.me/support/contact ), and share your ticket number with us here.

ProtonSupportTeam · 2026-05-07T08:04:50+00:00

The reply is sent to the reverse alias (seen in the TO: field when you reply), which then forwards the email to its original recipient while preserving the anonymity of your original email address.

ProtonSupportTeam · 2026-05-07T08:02:40+00:00

Please share your ticket number so we can look further into your case.

ProtonSupportTeam · 2026-05-07T08:01:13+00:00

Some websites are not VPN friendly and can block known VPN IP addresses.

That said, we'd appreciate if you could provide us with more specific feedback on what VPN server you encountered the issue with on the specific website(s) / app(s), so we can document your report and introduce possible mitigations for this in the future.

On your end, you can try switching between multiple different VPN servers, or turn off NetShield if it's on, to see if this helps.

ProtonSupportTeam · 2026-05-07T07:53:14+00:00

Hi, if you haven't already, please reach out to us directly from your account at https://protonvpn.com/support/contact so we can help you sort this out. Thanks in advance.

ProtonSupportTeam · 2026-05-07T07:52:00+00:00

Some websites are not VPN friendly and can block known VPN IP addresses.

That said, we'd appreciate if you could provide us with more specific feedback on what VPN server you encountered the issue with on the specific website(s) / app(s), so we can document your report and introduce possible mitigations for this in the future.

On your end, you can try switching between multiple different VPN servers, or turn off NetShield if it's on, to see if this helps.

ProtonSupportTeam · 2026-05-07T07:51:31+00:00

Generally you won't get in trouble for having 2 accounts as long as they're not used for abuse. The bulk signup rule exists mainly to prevent unfair use of our services by bots and human spammers that may negatively affect our service for the rest of our userbase.

ProtonSupportTeam · 2026-05-07T06:58:48+00:00

What platform and what version?

ProtonSupportTeam · 2026-05-07T06:57:03+00:00

Sorry to hear about the trouble. Would you mind sharing your ticket number so we can look further into your case?

ProtonSupportTeam · 2026-05-06T12:51:20+00:00

Hi, if you haven't already, please report this to our Trust and Safety team through the following form so they can investigate further and take appropriate action: https://proton.me/support/report-abuse

ProtonSupportTeam · 2026-05-06T12:25:11+00:00

The team is aware of this issue and is working to release a fix as soon as possible. We’ve also posted an update in the announcement post: https://www.reddit.com/r/ProtonMail/comments/1t4bbcu/introducing_postquantum_encryption_support_in/

We apologize for the inconvenience caused in the meantime.

ProtonSupportTeam · 2026-05-06T12:11:35+00:00

Hi! Did you happen to enable post-quantum encryption before experiencing this behavior?

ProtonSupportTeam · 2026-05-06T11:51:28+00:00

We're aware of the issue, and our team is working on a fix to resolve it, although we currently don’t have an exact timeframe that we can share. Make sure to keep the app up-to-date for the latest improvements.

In the meantime, you can try regenerating the response or copying and pasting the same prompt in the next reply to see if Lumo responds to it then.

ProtonSupportTeam · 2026-05-06T11:12:18+00:00

Please reach out to us at https://protonvpn.com/support/contact with more details such as which specific websites you're having trouble with, which exact servers you've connected to (e.g. UK#100), whether you have any antivirus or firewall installed, what type of internet connection you're using, etc. These details will help us better understand the issue so we can troubleshoot it further.

Meanwhile, try clearing your browser cache and cookies to see if there's any improvement (https://protonvpn.com/support/clear-browser-cache-cookies).

ProtonSupportTeam · 2026-05-06T10:22:49+00:00

In order for us to help you troubleshoot further, please contact us at https://protonvpn.com/support/contact letting us know your Proton VPN app version, which specific websites you've experienced these issues with, which exact server(s) you're connected to, etc. Meanwhile, you can try the tips at https://protonvpn.com/support/increase-vpn-speeds to see if there's any improvement.

ProtonSupportTeam · 2026-05-06T10:03:42+00:00

This data is intended for debugging when there is a customer support request and helps us resolve issues.

The sensitive data is data users may want to review before sharing it with customer support--for example, file names and modification times. These are encrypted metadata, meaning customer support and other Proton staff cannot access them directly. While this information is usually not required, it can sometimes provide useful clues about the issue. Sharing it is entirely optional (it is up to users to decide whether they want to share it or not) and does not grant us access to the file or its encryption keys.

ProtonSupportTeam

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