I hit "report" by accident.

Had to say it, since "contact us" is nowhere to be seen.

This needs to be added, which is why it has 3 votes from me.

I don't want this because :
- I read some emails later on the day and I don't want to open them yet.
- I read my emails in a different order of priority than the order of receipt

I already had this feature on a email client it was always bothering me.
As Desmond said: This should be a customizable option.

I definitely would like to see this implemented, but also for 'email is moved' as well.

This should be a customizable option. I personally prefer it the way as it is. You should be able to chose if, after deleting an email, you want to go to the Inbox, or the next unread or previous read email.

Other email programs have this feature, I just thought all email accounts would work the same. It's a huge timesaver, please implement it.

Basically, it goes to the draft until you delete it from there, But I suggest you hire a professional writing expert so that this won't happen again. Even I have been using a website for my MBA thesis writing check this out https://essaysadvisor.com/tag/best-mba-essay-writing-services/ It also provides you to choose the best writing services according to your requirements.

Without this feature, no quick triage for me, which is something I have to do on a daily basis. It'd really like to see this implemented (for now it is a burden to have to click every time).

This. Hitting A / T and then [Enter] for next message is kind of okay, but still super annoying. I would like to rip through 100 messages in 2-3 minutes just smacking A / T as I skim.

Please add this ASAP! Here are my answers to the last commenter's questions.

1. Would you want this to only happen in the Inbox folder?
All folders

2. When your Inbox has a list of messages with mixed read/unread status, would you expect to be automatically taken to the next message irrespective or read or unread status, or only to the next unread message? Could you share the reason behind your choice?
I would definitely want to go to the next message irrespective of read status. To me it's much more intuitive to have it always go in order rather than skipping around based on read status, and although there are times that I might actually want the opposite behavior, the vast majority of the time, I want to go in order. You also would introduce ambiguity if you consider the read status. What if you start on a read message, would you then go to the next read message or unread in that case? Going to the next unread will cause frustration and confusion.

3. Which platform would you like to see this implemented on? Web, mobile? Both?
It's very important to have the option for this on both web and mobile. I don't think people should be forced into this behavior, but it's very important for some people. On web, adding it to the column inbox layout is a no brainer and shouldn't even need an option. For the row layout, some people might like it each way. I really want to be able to archive/delete a bunch of messages in a row after glancing at them. That's significantly faster for me than deleting, looking for the next message I want to open, click on it, glance, and then delete.

4. If you'd like to see this on mobile as well, why not use the swipe action to quickly delete or archive emails? Is there something about that action that you find difficult?
Swipe is important and very useful in the conversation list, but like I mentioned above, tapping once in the same place repeatedly lets you go through mail much faster. I don't want to go back to the conversation list after looking at each message. It's faster to glace at a message, tap archive/delete, and then see the next message.

Final Comments:
I would give this all 10 of my votes if I could. This is really the most important feature for me because it gives me the largest increase in processing mail quickly.

From Reddit and questions from Protonmail:

1. Would you want this to only happen in the Inbox folder?
No all boxes, compare with gmail. Inbox is most important though.

2. When your Inbox has a list of messages with mixed read/unread status, would you expect to be automatically taken to the next message irrespective or read or unread status, or only to the next unread message? Could you share the reason behind your choice?
Haven´t thought about this but why not irrespective of read status? Preferably this could be a personal setting for every user.

3. Which platform would you like to see this implemented on? Web, mobile? Both?
Both. More important on comp but nowadays most people uses mobile devices so I think both unit types is important.

4. If you'd like to see this on mobile as well, why not use the swipe action to quickly delete or archive emails? Is there something about that action that you find difficult?

No. That feature is splended but we would like protonmail to show next message after delete/archive or, for that matter, just swiping to next message.

Please implement this. Is has gone several years without any action

Basic UX oversight. Needs to move to the next email automatically for quick triage. Agree with Benjamin: Also customize the behavior so that you can go to next newer, or next older.

I would not want this to be honest as it can download images, trackers, etc if you enabled this by default. I have download of images disabled on all email clients I use for this reason, but I dislike email clients that select next email. Especially when spam email is prevalent.

This feature seems like it would be trivial to implement, but it would be a huge usability improvement ... please prioritize.

Before the latest web upgrade, one could archive/delete an item in their inbox list, and the next would be automatically selected. This made it easier to archive/delete items without having to employ extra mouse-clicks. Please restore this ability.

Oh I need more votes. Shortcuts are for saving time, but you have to consider the workflow rather than just individual shortcuts.
The Delete-Read Next-Delete process currently it seems to be T>G I>Right Arrow>Enter>T.
When it could just be T>T!

For the the one complaining about people moaning.
Secuirty do not need to work aside from produtivity.
It could be as simple as a special shortcurt for that.
It is even worst because after clicking T to thrash the message the keyboard cursor lost focus in message list. So you need to click TB then click enter to get the message open.
So you need to click 3 keys in sequence to do the most common task every user to in their interface.
It is poorest UX design I ever meet.
And no statement from company in years make it even worst.
Security excuses are not good enough to justify a poor job since there is alternatives.

It is the most unrespectfull thing I ever see in a product.
Such a simple an obvious thing, asked for years by the users and not implemented.
If it is not addressed soon, I will need to leave the service.

Also customize the behavior so that you can go to next newer, or next older.

In all other email applications I've used, when you select an email then delete it, the next email is highlighted/selected. Proton mail is very frustrating because it never automatically selects the next email, you have to click on it. This means when you need to review and delete multiple emails, you have to manually select each time, which really slows things down.

I would like to have ProtonMail auto-load the next email in my inbox after archive or deleting an email.