Another vote for this feature. I migrated everything from Google to Proton and really miss this feature.

It would be great to be able to select multiple labels in the left sidebar.

Also, please allow us to save these customized searches for rapid searches in the future.

I love Proton, but it's crazy that this doesn't exist. It doesn't seem like it should even be that hard to implement.

the lack of being able to search (or filter) by multiple labels really eviscerates the value of labels. oye!

Just signed up for a paid family account, and began the import process... the lack of this ability is making it incredibly difficult to manage the transition.

Same thought as Jacob mentioned earlier here, I find it utterly shocking to have implemented only single label searches. Many systems share the same common point, labels are useful for "multi dimensional" filtering. Otherwise it seems like a folder, you've implemented this as if they were folders.
I'll give a meaningful example. An email can be related to 'support' being requested from your 'bank' support team. And another be related also to a 'support' to a 'social network' platform.
You're then forcing us to implement 2 labels: 'banking/support' and 'social media/support'
Not ideal to deduplicate and it can increase considerably the admin task to manage your emails.
And because of that, I can't switch to Proton and consider it as a production ready email platform.

I was shocked that you can only search on one label.

You built a label system why have it be gimped. What's the point of assigning multiple labels if I can't search by a combination of them?

It is also a critical part of the onboarding (import) stage to allow for properly manage issues that come up.

Absolutely critical, especially when a lot of power users are used to google.

See their search docs: https://support.google.com/mail/answer/7190

Even if you can't implement search syntax, at least try to keep up with functionality.

This is a must have. I'm finding it not possible to organize my email after migration.

Actually, looking a little more into the ideas, I cannot believe that this only has 163 votes. I would give it all mine if I could.

Why have labels if you cannot make search in several labels and/or folders? I often want to find my mails in one folder with one or more labels.

have seen this all over the place requested many times for many years. AND saw a message saying the API actually already supports it, so it is just a front end implementation.

As per all the comments below, labels are no more useful than folders without being able to use AND with them - otherwise there's point assigning multiple 'virtual folders' (ie labels) to them.

any chance we get a feature like this anytime soon?

I just imported all of my Gmail, Yahoo and other providers' email accounts into ProtonMail... only to find that this basic and critical feature is not available !
It is so unbelievable that I didin't even bother to check in the first place... Now I think of moving everything to Exchange / O365.
Sorry Proton, the whole idea of privacy is great, but the system has to be usable by users who file, search for, forward, delete emails by thousands potentially each and every day.

Critical feature. I am thinking about going back to GMail...
ProtonMail without this feature is not ready for long term.

Critical feature. The power of labels is cripled without it. Like others, after setting up my labels, I was shocked to discover that this basic function is missing. I will have to think very hard about whether proton will continue getting my subscription money.

I went through the trouble of configuring a custom sieve filter to automatically label incoming emails and then... I can't search multiple labels or a label + inbox? Very frustrating.

Search (filter) by several tags (label) is must have. I would like to filter my emails by several tags like - «tax» & «2022» & «invoices»

Proton, I paid 2 year to get unlimited label, and moved all my Gmail over. Now, I am finding that I can't even search "AND" for labels?

I really want to make this work. But, looks like this is just money wasted. Will probably stop using Proton.