This is a major issue. I am logged in to Proton Drive using one of my less critical email addresses (and it is shown on the upper right corner of the webpage), yet the documents are digitally verified using my main Proton email address.

For a privacy focused storage system, the default should be that the sharing link provides access to the shared file/folder only and to nothing else, unless specifically selected. No name, no account detail, no sender address, no origin detail, absolutely nothing at all.

As an additional suggestion, it would be great if the Proton account settings would provide an option to block the usage of the base account ID for everything except the use as login ID. This should block usage for Drive (block uploading, sharing etc) as well as email (sending not permitted, receiving resulting in an email address not found message to sender). This block should protect all base related accounts like myid@proton.me, myid@pm.me etcetera.

Editing my importance to “critical”

Has this been resolved? It would be really helpful for community organizing in MN right now

I don't use sharing on Proton Drive for this reason. Had I known I'd be stuck with whatever email I logged in with first, I would have chosen a different email address to log into before uploading hundreds of GB of data.

I strongly support this feature request. Exposing the primary Proton email address in shared Proton Drive links is a real privacy gap, especially for users who rely heavily on aliases to compartmentalize work, personal life, or anonymous activity.

Being able to choose which alias is associated with uploaded or shared files—and ideally organizing files by alias, as suggested above—would not only protect privacy but also make Proton Drive far more flexible. This could extend naturally to Photos, allowing different devices or contexts to back up to different aliases.

Even better if Proton adds optional settings like:
• Hiding your email entirely on shared links
• Choosing which alias appears (if any)
• Adding a custom message for uploaders
• Offering an upload-only view without exposing existing files

This feels like an essential improvement for a privacy-focused ecosystem. I hope the Proton team prioritizes it.

I commented previously about why this feature is CRITICAL, but I've been thinking further about the best way to implement it.

I propose that there should be an alias picker at the top of the left-hand column above the "NEW" button.

When you select an alias, you see all of the files/folders that belong to THAT alias.

It's simple, straightforward, and removes any concerns or confusion about which e-mail address will show up when you share something.

It would ALSO add great flexibility to user file organisation -- because the files that pertain to my-work@proton.me get compartmentalised separately from the files that pertain to my-personal@proton.me.

Furthermore, this COULD apply to the Photos section as well, to achieve similar compartmentalisation. The Proton Drive smartphone app could ask which alias you want to back up photos to. Thus if you don't want photos from multiple devices jumbled all together in the same reel, you could have the photos from your personal phone backing up to my-personal@proton.me and the photos from your work phone backing up to my-work@proton.me.

Proton Team, please consider!

For me Like Alvin T

An option to pick WHICH email address of the Proton Drive user, should the user wish to display it.

Regards

This is critical to a privacy-focused usage of Proton Drive.

How is this not a thing yet? I'm sure everyone who came to Proton, came for privacy purposes.

Yes please!

As expressed by others, when one shares a Proton Drive shared link, there should be a few additional options available:

1. An option to show or NOT show the Proton Drive user's email address.

2. An option to pick WHICH email address of the Proton Drive user, should the user wish to display it.

3. An additional short message field that is shown to people who go to the link, "Upload Files to Alvin!" or whatever else one wishes.

4. An option to hide files already present in the shared folder (i.e., an upload-only view).

Many thanks!

Also when I share a folder on Proton Drive using a public link with editing permissions, my main account email address is being exposed.

This is particularly concerning because Proton Drive is a privacy-focused service, and it is unacceptable for any personal information, such as email addresses, to be disclosed.

Exposing my email not only compromises my privacy but also increases the risk of unwanted contact and potential security threats.

Users trust Proton Drive to safeguard their sensitive information, and this issue undermines that trust.

Please address this problem promptly to ensure that user privacy is maintained.

How is this not sorted. It’s critical. I can’t share items from the Proton Drive in its current set up!

I try to keep my primary e-mail address a secret. It's hard... it shouldn't be.

This feature is essential to me: it not only lets us differentiate between professional and personal accounts, but also helps us determine whether the address we used no longer exists or, for example, if the domain’s ownership changes for various reasons. In such a scenario, the new domain owner could find out that we are using Proton with their domain...

I support this emphatically!

At the very least, we need to be able to pick which e-mail alias owns individual folders, if not individual files.

Proton Team, please consider:

1. For most of us, our Proton Drive was created under our primary username, and MANY of us follow the practice of not revealing that username to anyone. This puts us between a rock and a hard place when wanting to share things from Drive.

2. The whole point of multiple e-mail aliases is to separate different aspects of your life. If you're sharing something with a business colleague, you might not want him to know your personal alias, or vice-versa. And for the other guy, seeing files shared by an e-mail address that he's never seen before is confusing.

Number 2 is the reason why a request to Support to wipe your Drive and re-create it using a different alias doesn't actually solve the problem. It still boils down to one particular e-mail address that has to be revealed to absolutely everyone you share anything with, even if that isn't the one that you want them to know or use!

The e-mail address is also revealed when writing a comment into a document when logged in. Then, anyone with the link can see it together with the comment. This is not good at all. It should be made optional. As a privacy provider, Proton should think through carefully how it sets these things up beforehand.

This is a critical feature for anyone that uses one or more custom domains. Let us choose which email alias to use when sharing OR use the default email alias. Either or will work.

I didn't even know it displayed the main email address... that's actually a complete no-go and should be standard. It must be a joke that Proton implements something like that without thinking it through.

This is the reason I don't use Proton Drive. A common approach to privacy is persona's and email aliases enable that to occur. As stated in the previous comment, protecting the primary account email address is important to me, I don't want to share it - ever.

Enable a folder to be assigned a Proton email alias or Proton Pass alias and all files under that folder are displayed as owned by that alias as well as the email from which it is shared.

This would enable a user to establish a persona within proton to share emails and documents.