Yes! We need search by tag:TAG and folder:FOLDER

Say I have a child just diagnosed with the CKM condition (Cardiac-Kidney-Metabolic).
I remember a Medscape article on it but it could be in any of the following folders: Cardio, Kidney, metabolism, Medscape, child, conditions, and so on. Finding this email would allow me to open an important discussion with the medical specialist.

I have built an extensive vocabulary of synonyms per label such as 'risk, dangerous, crisis' in anticipation of this feature being developed at some time.

Currently I have to search very many emails to find the one I need with the comments I made at the time. Huge time involved - for every search.

All that's needed is purely a multi-label search across all folders. No complex and/or of labels and folders.

Being in app dev I know this would be relatively simple to implement and fast to develop. It would also be a step towards later full search parameters as requested in this post.

Search needs improvement. It is just ok in the web app, but it is terrible in android app. Please fix it.

I'm OK with just the most basic feature: find the label within the folder. I use labels for categorization of different incoming groups; I want to be able to find what I haven't yet cleared from my inbox without having to sort through emails from other groups at the same time, particularly since scrolling up and down through folders to drag them to is inconvenient and time-consuming.
I'd be super happy if there was a syntax like "in:inbox has:work" for the search bar. This shouldn't require indexing and the ability to search inside the emails, right?

The lack of filtering (has this label but not that label) is why I did not sign up with Proton Mail.

Would also be great to be able to do a has:anylabel search. Essentially I want to be able to quickly see messages in my inbox that have a (any) label applied so i can archive them. Usually I've setup a rule to label important stuff and for inbox processing I mostly want to focus on things that haven't got a label - especially when I've fallen behind in my email management and want to quickly clear out my inbox.

I gave myself one month to test out Proton mail as a replacement of Gmail and I’m very surprised that this feature is not available. I need to search for emails that have X label but not Y. This is one of the critical features for me :/

I just moved over 250,000 emails from Gmail to Proton Mail, but tidying up my new-and-improved Labels and Folders will be way too daunting without these requested search abilities. I spent the time creating Labels and Folders for my needs, so please let me use it all for precise searching.

For example, I have 200 emails listed per page, and apparently a search result with more than ~20 pages (so ~4000 emails total?) eventually kicks me out of the page I'm on, saying there are too many search results. This is an explicit example of why I Need better search tools, to be able to work with smaller search results so that I don't get frozen out of my search results!

this seems like a basic feature that is missing

I'd be happy with even just a basic searchbar command for this. Being able to search on multiple tags/labels is incredibly useful for many use cases.

I am surprised that labels and folders are not searchable items on level with proper words. Any combination should be possible: Any number of labels in any number of folders.

This is a must one. We must be able to search in specific folder(s) for specific label(s). To limit the search to a folder OR to a label is really not enough for a modern email service. Please make sure to add this functionality and inform the community about release plan.

Allow search to

- Select multiple "search in" options (search in all selected folders)
- Filter by state (eg, only show unread and/or starred emails)

I would really like to be able to use labels as proper tags as suggested in the documentation for protonmail. The indication from the docs is that tags are intentionally not a folder, but rather a tag that can be applied regardless of folder. A piece of metadata attached to the message itself. Presumably, given you can filter across all email for that, this is already indexed in some way.

I have a few use-cases for examples. I have labels like "Notifications" and "Ads" to note broad categories of emails. I have labels for email accounts I am migrating to Protonmail, to make it easy to identify what is still using those accounts.

Lastly, I have a label of "Expiring" since there's no way to do filtering, searching, or sorting based on expiration.

First, this would be extremely helpful when troubleshooting Sieve scripts. I initially realized this searching wasn't possible when I was trying to figure out why some emails were falling through the sieve filter in a way that resulted in being tagged with both Ads and Notifications -- which shouldn't happen. I wanted to search for emails that have both to begin troubleshooting but couldn't.

I can search for one, but because of the UI limitations I cannot see in the index which ones also have the other tag, because I can only see one tag and then +x for how many other tags are present. So I have to click through one at a time to find examples.

I can't even filter Notifications into a folder instead and solve it that way, because searches are only against "All Mail". I can limit to a Folder, but then I can't search for a label.

My plan for tagging anything sieve marks for expiration with Expiring was to be able to review this. To view key combinations like "folder:Invoices label:Expiring" or "label:Notifications label:Expiring" to do a quick scan to see if I needed to cancel expiration or otherwise take action on any of those. Not to mention checking to make sure sieve didn't flag any of them incorrectly.

Next example is that I filter things like communication from businesses that I buy products from into their own folder, along with related communication. The ones that are connected to actual shipping and delivery I add a label of "Deliveries" to. I don't sort every company to its own folder, but I do separate out some of them, and I'd like to be able to quickly view just the delivery notifications from a given vendor like "folder:Shopping/Etsy label:Deliveries" and cannot.

Lastly I filter finance related messages to a folder tree organized by year. The ones that are tax-related are tagged as "Taxes". Here pretty soon I'm going to have to get my tax prep going and I had expected to be able to do something like "folder:Finance/2025 label:Taxes" and easily see all of the messages connected to that. I can somewhat fake this one out with a date range for messages combined with the Taxes label -- but it's still a good example of how I'd would use it.

HTH

Please, do this feature as quick as possible. It's a shame that this ideia is here since 2019, almost 5 years and no response from the Team. Estou começando a me arrepender de ter assinado por um ano o Proton Ultimate.

I was really surprised when I found out that I cannot filter/search/select multiple labels at once. I've tagged mails with several labels to indicate their status and belonging and then I discover that I can't filter for them. I understand that search even for metadata in encrypted content can be difficult to implement but it's possible to filter for a single label so I assume that the metadata is available (maybe in encrypted form or at least on the client).

I was about to upgrade before I found out labels are so extremely limited in functionality, including this.

Critical search function. Without it, I may just have to go back to other email options.

It's been over 5 years since this request was created. Why this critical functionality hasn't been implemented?

- allow to search for messages with no label