necessary for me to function for my business and also personal life

The lack of this basic functionality effectively compromises the entire point of using Proton Mail - privacy and encryption. On web you have to download the attachment to your hard drive, before re-uploading it to Drive - therefore completely removing the secure, E2EE, Proton environment. Crazy! Even more crazy is this has been sat going nowhere for over 3 YEARS!!

This is a no-brainer; pretty much every product suite that has both storage and email provides this type of integration. I find that it's pretty instinctive for me to expect when I click the attach icon that I'm presented with an option to attach from cloud storage or local storage.

Dear ladies and gentlemen,
I would like to have the possibility to drag-and-drop mails from ProtonMail into a folder in ProtonDrive. In this way I would have all information regarding a topic at one place. And I do no need to maintain similar folder structures in both applications.
Thank you for taking my idea into account.
Kind regards

I'm almost as surprised that no one seems to have suggested this, at least for the iOS and Android apps, as I am that this feature exists for the desktop app but not the mobile apps. It seems blindingly obvious, I'm just shocked that Proton Drive is not offered as a source when adding attachments in the Mail app, especially if both apps are installed. It makes it hard to recommend Proton products when the features we are so used to from competitors remain absent.

Bonus points if you can allow us to recompress/resize photos, videos, and other documents when attaching them to an email, and/or autoconvert them to private Drive Share links for the recipients.

Most Basic Feature

Hi Proton team, can we get an update on this? Obviously a high-visibility / highly requested feature here, would love to get an update on.

Dear Proton Team,

I am writing to formally suggest an important workflow improvement for the integration between Proton Mail and Proton Drive.
Current Limitation

When composing an email in the web interface, clicking the attachment icon (paperclip) only opens the local file browser of my computer. There is no option to directly browse and select files already stored in my Proton Drive, nor to insert them as secure links without manual copy-paste workarounds.

According to Proton's documentation, this integration should exist ("manually attach files from your existing Proton Drive storage by selecting the Drive icon in the compose window"), but this functionality is not visible in my interface.

It is just incredible not to get this feature by now. Please add it. Thanks.

When composing an email in Proton Mail, users must manually download files from Proton Drive and then re-upload them as attachments. It would be great to be able to directly attach documents from the ProtonDrive storage into an email.

I need to be able to move an attachment from mail to drive directly without having to download and then upload it. I'd like to upgrade to a proton business account, but that's not realistic until we have basic integration like this. Thank you

Not amazing. Basic. It's insane that we can't do that. It's bad enough that attachments are hard to find, but now we can't save them to drive? This isn't just annoying... it's a dealbreaker. Someone on proton, who has images in their sig, so every one of their emails shows 10 attachments... sent me a contract. A contract. I missed it, the sender told me about it and I had to go back, search for her emails, sort by size, scroll to the very bottom, ok found it. Now I can't even save it to drive? Sorry, but it's pathetic.

Hi Proton. Can you please respond to this request and assign a status? Thank you.
Duo customer.

One of the reasons I choose proton when looking for a Google alternative was the integration with a drive. A little shocked to find there is none...

This is a very basic function that should have been implemented by now. Seems like most Protonmail users would have a use for this feature.

Integrate Proton mail and drive (and photos), to send and save photos and files, without downloading them first on computer/phone.

I want to mail a photo, uploaded from proton Drive and visa versa, save photo's or files attached, on the drive directly.
Proton Mail (desktop app) has exces to the Proton Drive (and also Photos) directly, to attach or link photos and files.

I can’t attach files directly from Google Drive. Are you serious?

Highly agree. Automatically making any mail attachment over 24mb into a Proton Drive link in-place is a great feature too.

Currently, Proton Mail and Proton Drive operate as separate applications with limited integration. Users who wish to share files stored in Proton Drive via email must manually navigate to Proton Drive, create a shared link, copy it, and paste it into an email. This workflow is time-consuming and disrupts productivity.
We propose an integrated feature that allows users to:
Search and access Proton Drive documents directly within Proton Mail.
A built-in search bar or “Attach from Drive” option in the compose window.
Ability to search files by name, type, or recent uploads.
Attach or share Drive documents seamlessly.
Option to attach the file directly (respecting size limits) or insert a Proton Drive shared link automatically.
Maintain end-to-end encryption and access control (e.g., password protection, expiry date).
Unified Search Experience.
Extend Proton Mail’s search to include Proton Drive files, enabling users to locate both emails and stored documents from a single interface.
Benefits
Streamlines workflow between Proton Mail and Proton Drive.
Saves time and reduces manual steps when sharing files.
Enhances usability and encourages broader Proton ecosystem adoption.
Aligns with Proton’s privacy-focused mission while improving productivity.
Example Use Case
A user drafting an email needs to attach a previously uploaded PDF stored in Proton Drive.
Instead of opening Proton Drive separately, they can:
Click Attach → From Proton Drive.
Search for “Invoice_March2025.pdf.”
Choose to Attach as File or Insert Secure Link.
Send the email — all without leaving Proton Mail.

Adding the option to attach emails from Proton Drive would be great, avoiding the need to download Proton Drive and then manually add it to the email. Ideally, the sidebar, like the calendar, would include Proton Drive, or next to the attachment icon, it would have an "Attach from Proton Drive" option.