1741 results found

1. Remove notification after event ends

   In Google Calendar, on Android at least, event notifications automatically disappear after an event ends. It would be nice if Proton Calendar did the same, to help keep the system notification tray tidier.

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2. (Current) Critical Security Vulnerability: Missing Default-Deny Policy - Why Whitelists Fail Against Zero-Click Exploits (State Trojans)

   (Current Text) April 26, 2026
   Dear Proton Team,

   Currently, Proton Mail under (Filters) "Blocked and Allowed Senders Lists" offers only a whitelist as a positive exception in a system that standardly accepts everything ("Default-Allow"). The "Allow" function serves merely to move important emails back from the Spam folder to the Inbox; it does not prevent the receipt of emails from other domains. The "Block" function serves only to block known, malicious senders.

   The fundamental security problem is that for users who need to protect themselves against Zero-Click Exploits (e.g., advanced state trojans like Pegasus or similar spyware), this "Default-Allow" model is fundamentally insufficient and dangerous. An attacker can register thousands of domains or use hacked servers to send malicious emails. A "Block" list can never cover all future, unknown attackers; as soon as a new, malicious domain is created, it is not on the list, and the email is accepted. Furthermore, as long as the Proton server accepts every connection from an unknown domain (even if it is later moved to Spam), there is a critical risk that a Zero-Click Exploit could be executed during the processing phase, such as rendering images, parsing metadata, or analyzing attachments. The malicious code does not even need the user to open it; it can compromise the email client or server infrastructure as soon as the data touches the server. Many users mistakenly believe that an "Allow" list automatically blocks everything else. Technically, this is not the case. The current list is merely a filter ensuring that certain emails do not land in Spam, not a firewall that cuts off access for everyone else.

   I therefore demand the introduction of a separate, explicit setting "Allow Only Permitted Senders" that fulfills the following technical requirements. First, the whitelist must offer flexible granularity by supporting both individual email addresses and entire domains. This allows users to define permitted senders with two distinct levels of granularity to balance maximum security with practical usability. Individual email addresses are essential for high-security scenarios where only a specific person is trusted (e.g., john.doe@company.com); this prevents access even if other accounts within the same domain are compromised. Entire domains, on the other hand, serve for the efficient management of trusted organizations or partners (e.g., @trusted-partner.com) and allow all current and future senders from that domain without manual maintenance. The system must evaluate incoming mail against both lists, with a specific address rule taking precedence over a general domain rule if conflicts arise.

   Second, server-side rejection at the TCP/SMTP level is required. The server must immediately reject the connection before any data transfer if the sender is not explicitly on the whitelist. This requires validation already during the SMTP handshake, ideally immediately after the EHLO/HELO command or at the latest before the MAIL FROM command. If the sender is not allowed, the server must immediately terminate the TCP connection or return an SMTP error code (e.g., 550 Access Denied or 554 Transaction Failed) before the actual email data transfer (DATA command) begins. No data packets containing potential exploits may be received; the server must not buffer or analyze the email content even temporarily if the sender is not on the list. The connection must be severed at the entrance so that no data packet containing a potential exploit is received by the server infrastructure.

   Third, full user control must be guaranteed. Users must be given the opportunity to completely close their digital gate ("Air-Gap" principle for email) without relying on infinite and never-complete blocklists. The responsibility for maintaining the whitelist lies with the user; this is the principle of every high-security system.

   Proton advertises worldwide with "maximum protection" and "end-to-end encryption." Yet, without a "Default-Deny" option that supports both address and domain whitelisting, the door remains physically open to unknown attackers. With this function, Proton would be the only commercial email provider enabling users to protect themselves against state surveillance and zero-day attacks through strict perimeter security. For journalists, whistleblowers, and activists, this is not an optional comfort feature, but a matter of survival. The ability to whitelist entire domains simplifies communication with teams, while the option to whitelist single addresses ensures precision against targeted attacks.

   Please evaluate this request for technical feasibility and prioritize its integration into the roadmap for security updates. Proton should offer this choice to substantiate its position as the world's safest provider.

   Thank you for your work on a safer internet.

   (Current Text) April 26, 2026
   Dear Proton Team,

   Currently, Proton Mail under (Filters) "Blocked and Allowed Senders Lists" offers only a whitelist as a positive exception in a system that standardly accepts everything ("Default-Allow"). The "Allow" function serves merely to move important emails back from the Spam folder to the Inbox; it does not prevent the receipt of emails from other domains. The "Block" function serves only to block known, malicious senders.

   The fundamental security problem is that for users who need to protect themselves against Zero-Click Exploits (e.g., advanced state trojans like Pegasus or similar spyware), this "Default-Allow" model… more

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3. Improve email masking in Daily Notifications (Show first and last characters)

   Currently, Daily Email Notifications only show the first two characters of the recipient address. This makes it difficult to distinguish between similar aliases or folders (e.g., support@... vs super@...).

   I suggest updating the masking logic to show both the beginning and the end of the local part of the email address.
   * Current: su********@proton.me
   * Proposed: su****rt@proton.me or s******t@proton.me

   This provides better clarity while maintaining the privacy of the full address.

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4. Creation of a Public Spam Address List

   I suggest creating a public list of known spam addresses. This list could be initially curated by Proton Mail and then maintained and continuously updated by the community (for example, via GitHub).

   Additionally, it would be highly beneficial to add, in this section (https://account.proton.me/u/78/mail/filters#spam) within each user account’s spam filter settings, a feature that allows users to upload one or more precompiled lists of spam addresses (e.g., in .txt, .md, .csv, .json, or similar formats). This would enable users to manage their own personalized lists and import them all at once, rather than having to mark addresses individually.

   Furthermore, there should also be an option to upload files containing lists of blocked addresses.

   I consider this a high-level feature that should already be available in Proton Mail.

   I suggest creating a public list of known spam addresses. This list could be initially curated by Proton Mail and then maintained and continuously updated by the community (for example, via GitHub).

   Additionally, it would be highly beneficial to add, in this section (https://account.proton.me/u/78/mail/filters#spam) within each user account’s spam filter settings, a feature that allows users to upload one or more precompiled lists of spam addresses (e.g., in .txt, .md, .csv, .json, or similar formats). This would enable users to manage their own personalized lists and import them all at once, rather than having to mark addresses individually.

   … more

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5. Strike agenda items

   When deleting an event in the Proton Calendar, I still want to be reminded that it was there originally. Is it possible to offer two kinds of delete:
   (A) strike through the event (so it is still visible in the calendar, but now the title is in strike through), or
   (B) permanently delete the event?

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6. Option to hide the left sidebar when viewing an email on OSX

   On web, you can simply click a left arrow and it minimizes the sidebar. But you can't do this in the OSX desktop app. Would love increased focus in my experience when reading an individual email, side bar is distracting. Thanks

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7. sunrise and sunset times

   For people who start the day early (runners, photographers etc), it would be really useful to have the option to display sunrise/sunset times for your local area. Planning out hikes/runs etc would be so much easier.

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8. Option to remove previous email history when replying

   sometimes i dont need the existing conversation and its tiresome to remove it each time i reply
   it could be added to settings as an ability to disable quoting the messages we are replying to

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9. Option to be able to click anywhere on email when shift / ctrl clicking

   I know you can select email by pressing the thumbnail and using ctrl-click or shift-click from there to select, but I'd like to have the option to do this without having to press the thumbnail every time.

   Often I end up accidentally clicking away or forgetting and clicking the email itself when selecting and its quite annoying. Or it ending up taking longer to select emails because I have to carefully click each one.

   Worst case please add it as an toggleable setting.

   3 votes

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10. Lumo

    I'm not sure why it's not available yet, but a lightweight LUMO integration that assists with email writing would be very useful.
    It could correct spelling, grammar, and punctuation, translate text, or even compose complete emails from short prompts — while asking for confirmation before sending.

    5 votes

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11. UI elements for Emails - too much & too big

    When opening an email - especially on mobile - UI elements are too big, to much of them and maybe they shouldn't all be there. See screenshot here - https://drive.proton.me/urls/0G7Y7D3WF0#mL6N900V24rk

    1. "This image is from a mailing list" - I know this and usually there is a link for unsubscribe, so not needed there. Also people might feel forced every time they open an email from a list to unsubscribe.

    2. "Some images failed to load...." - This is also not necessary. I would rather have a general settings for all emails. Maybe you could find a solution to load images to a temporary place, remove trackers then serve us the clean images.

    As you can see in the screenshoot around 80% of the screen is not the content of the email + instead of start reading the email, I have to address options with most of these emails.

    When opening an email - especially on mobile - UI elements are too big, to much of them and maybe they shouldn't all be there. See screenshot here - https://drive.proton.me/urls/0G7Y7D3WF0#mL6N900V24rk

    1. "This image is from a mailing list" - I know this and usually there is a link for unsubscribe, so not needed there. Also people might feel forced every time they open an email from a list to unsubscribe.

    2. "Some images failed to load...." - This is also not necessary. I would rather have a general settings for all emails. Maybe you could find a solution to load images to… more

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12. When I open or use the preview in calendar, show the create date for repeating events.

    Since we don't have any task system, I create repeating events to remind me to complete some task like for example checking a credit card refund. 3 months down the track when I look at the event I want to be able to see the first date for this event. Easier than having to scroll back through a busy calendar trying to work it out.

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13. No ads for paid accounts

    Could we please avoid "Black Friday Sale" banners and such, in the UI of the apps? (Proton Mail for Windows, for example) I'm paying for the service, it should be as clean as possible, with no ads, not even internal/Proton ones. There are newsletters for this kind of info.

    4 votes

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14. Add calendar regions

    It would be nice to be able to mark regions in the calendar and be able to share these. There are plenty of times that no event or meeting is happening, but I do want to let people know of my working hours for example.

    2 votes

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15. Android mail app open image attachment needs to default app

    On the Android app, every time I open an image attachment I'm offered multiple apps to open that image, I just want it to use a single default app I configure.

    Ideally if the email is from a specific address then I can default the app that is used to open the image.

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16. Include notifications in subscribed calendar

    Sharing calendar via link should have an option to include also notifications. Currently only manually exported calendar contains notifications, which makes it impossible to sync calendar via subscrbtion.

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17. Year/Multi -Month View with Toggle-able Events

    Allow for longer planning views up to a year on one page. One year would be pretty small on most screens, but not all. 4 months in two columns of two would be usable on most laptop screens though.

    Then if you allow events to be toggled on and off, this would aid in scheduling out long term. For instance, if you had, say 12 possible events/conferences/schools/etc you could attend in a year, many of which had multiple iterations, you could more easily visualize how to tetris a schedule out of your options.

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18. time entry

    In proton calendar

    Current time entry format is HH : MM. User must manually type the colon " : " when entering time.

    Desire the ability to enter time without typing the colon " : ".

    System shall automatically interpret 0800 as 08:00.

    Thank you!

    2 votes

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19. Adding bullet points in Proton Mail mobile app

    At present I can’t add bullet points when I send an email from the Proton Mail mobile app and this is very painful.

    5 votes

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20. Calendar - Adjusting font size (reducing) for events on Android to fit on the screen
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