I would also like the ability to be able to permanently block senders from delivering into my mailbox. Please add an option to be able to permanently block senders; not just move them to the junk folder.

This is an excellent idea. This would change Proton Mail from okay to fantastic. I would switch to another email service in a heartbeat that provides this feature.

completely support such idea email is moving more garbage than actual useful info.

Protonmail please add blocked emails feature so it permanently blocks email address.

I don't want blocked addresses to go to my spam folder. I want them blocked, period. Other email programs allow this to be done directly from inbox. Why can't Proton mail? The post above, "Add option to reject emails based on sender" describes the needed action perfectly. (I was unable to vote for it- none of the buttons on this page are currently working.

I got Proton for the security and reliability. I don't need bells and whistles. . But I am surprised that its basic functionality is so limited, and that basic tasks are unnecessarily complicated.

And this particular simple complaint is already at least seven years old!

What you, @ProtonMail Team, propose is not the same as what is requested.

As soon as I see the email in my Inbox, I would like a simple click to "mark" it: (A) send sender's email address to a "Permanently Blocked" list (and automatically set up the necessary filter to do it), or (B) send sender's address to a "Blocked-but-Visible" list (also setting up the filter needed).

To that I would add a (U) option for allow (B)-marked senders to be Unblocked (automatically deleting the filters as necessary).

(I also +1 Paul Davis's suggestion to send an "Undeliverable" message to sender.)

The value of what's requested is to reduce the filtering of a bad actor's communications to simple clicks instead of imposing time-consuming setups of custom filters (and refreshing one's memory regarding how...).

Incidentally, as what is requested amounts to auto-setting-up those filters, those filters can also be removed manually at any time, even (A) filters. (At login, filters in effect would be checked first to properly display (B) (and not display (A)) emails.)

I would like to be able to block certain unwanted senders permanently - I constantly get one from an unwanted source and although it gets into the Spam folder I would like the opportunity to save having to go in there and delete it on a regulator basis. This one comes as a result of a sender ignoring my request to BCC when sending to many.

I would like to add my vote for option (A) to block the message as well as send an "Undeliverable" message to the sender.

Having filters for ungoing spam is just a bandaid and still requires action from the receiver. The option many here have been asking for years is to just bounce back spam completely. I don't want to see the email in my spam folder and neither do I want to recieve it. Fiddling with sieve and programming code is for nerds who have the time to do so. I am a paying customer of Protonmail and a simple feature to bounce unwanted email is mandatory these days!

I love ProtonMail and would like to BLOCK some senders permanently, NOT sending them to spam.
I just don´t like to see them at all, they are always the same and very annoying...
Please let us BLOCK senders.
I am using the BETA version and would like to see the folders colorized to better organize them.
Also don´t like the automatic filling of "To" and the "Subject" files with my e-mail address, please sort that out ;-)
Thanks and keep improving your great service ;-)
Have a great day

I am a new paying customer and I already love Protonmail.

However, I am really missing this feature of "ignoring" a specific email-address / domain. It's really annoying to get messages from a specific email account, which is just spam. I hit the "unsubscribe" link many times, but it doesn't change anything.

I just want to get rid of these annoying spammers. I don't want them in my spam folder. The PM-user should be able to flag this specific email-address as "ignored" and you will not get any messages from this email again (in your whole lifetime :p). Don't put it in the spam folder. I really want to ignore it. I don't want to see this email-address ever again.

Well, spam filtering is nice, but this is different.
I do want blacklisted users to get a system-generated undeliverable message.
This would be very useful. Definitely doable.

why don't you have a blocking option that bounces back spam to the sender across all protonmail accounts so nobody has to put up with the spammers , i'm sure in this day and age with the evolution of algorithms and machine learning / A I as soon as an email address is blocked by a user you could develop a process that flags a spammers address for everyone

I just came to the support section to ask for the same thing. I am getting spam from local scammers trying to send me fake dating profiles. It goes into the spam folder but that isn't enough.

I would like the ability to make these scam and spam email appear undeliverable.

As we all know, if you click on unsubscribe links all you do is prove to the spammers that you're getting their spam. Just deleting these emails for years is not a solution. Ideally, they should get reflected to them so they have to pay a price for sending scam/spam emails.

Thanks a lot for protonmail! It is a great service.

Oh, I just noticed a comment about sending a reject message. I think it should be like other email services: just block it. No need to let the blocked person know, and many times it is better to NOT have them know.

Wow, I thought every email program had that! I haven't blocked anyone often, but the times I did it was definitely necessary. Does 'started' mean it's in the works now? I hope so. All that said, I do love Proton, and especially how they continue to work hard to give us what we are asking for. Thanks everyone.

Man that would be an awesome feature
There should be a whitelist system too, instead of blocking people, you could setup your account to block everyone by default and unblock them as it's needed

I would expand to enable the ability to block and entire domain, not just a particular sender. In addition, I'd like to be able to apply the same filtering concept on the outbound. For example no emails should be sent to anyone @gmail.com, on the off chance my autocomplete puts the wrong send to address in the to: field

I would like to accept only valid encrypted PGP messages.

Somebody is thinking at last. Security doesn't need a prettier web interface. It needs a combination of whitelist and blacklist options at domain and sender levels.

Expand the idea from annoying senders to general opsec. It should be possible to enforce. An option to accept mail only from other Protonmail accounts, and then only if encrypted, would be a good start.

That ruleset could expand into accepting any valid PGP messages from anywhere, but no plaintext messages of any kind.

Blacklisting whole domains (yahoo, gmail, hotmail) should be possible, not just individual senders.