The dedicated Protonmail community deserves a real response from the crack team of Protonmail scientists and engineers. When are you implementing Yubikey or are is your tag line just bs?

"We are scientists, engineers, and developers drawn together by a shared vision of protecting civil liberties online. This is why we created ProtonMail, an easy to use secure email service with built-in end-to-end encryption and state of the art security features. Our goal is to build an internet that respects privacy and is secure against cyberattacks.

We are committed to developing and widely distributing the tools necessary to protect your data online. Our team combines deep mathematical and technical knowledge from the world's top research institutions with expertise in building easy to use user interfaces. Together, we are building the encrypted communication technologies of the future."

While I wholeheartedly appreciate everything Protonmail stands for, I can't get past the fact that Protonmail doesn't make available an APK download of it's Email app, exclusive from the Google Play store.

AppsAPK.com is a great site for this purpose and would be advantageous for all android users whom already refuse the use of the Google-Monster's services for privacy and security reasons.

I don't care what Google says-------Google and it's CEO are just as culpable for obfuscating our privacy and true security as are any other greedy corporate entity whom requires users to give up their rights to defend and to protect their personally identifiable information simply for the purpose of patting their ad-partners on the back.

https://www.ted.com/talks/gary_kovacs_tracking_the_trackers

This is intrusive and unacceptable behavior from Google and other corporate thugs whom do the same things. When is enough going to be enough of all this ho-ranging hoopla?!

Just because they can hide behind the already obscure nature of the internet is no excuse for their privacy-violating actions and policies, of which they force upon users because they care more about insane profiteering at our expense by watching, stalking and pilfering everything about us and what we do online.

Someone needs to draw a line that these corporate thugs aren't allowed to cross. They're not going to do it-------so we need a voice of reason amid this crisis to stand up for what is right-------to help us protect our identities from these dictatorial corporate entities hell-bent on eviscerating our rights to privacy.

https://www.youtube.com/watch?v=X1F8sHjCBx0

Microsoft is now one of the latest, worst offenders of this by the way in which it has forced Windows 10 on users without permission and by the way in which it's new Privacy policy and ToS aggreements actually grant Microsoft ownership rights to our very own identities. Read the EULA and ToS very carefully and you will see that the language is legally designed to protect Microsoft's exploitation of our personally identifiable information while at the same time making it almost impossible for us to legally defend our rights to protect that which rightfully belongs to us.

Google can sugar-coat its policies all they want, but behind the scenes they do the very same things that Microsoft is guilty of regarding this matter of pivotal importance.

http://www.pcworld.com/article/3101396/windows/microsoft-faces-two-new-lawsuits-over-aggressive-windows-10-upgrade-tactics.html

http://www.huffingtonpost.com/2013/08/13/gmail-privacy_n_3751971.html

http://www.nytimes.com/2015/04/16/business/international/european-union-google-antitrust-case.html?_r=0

http://www.businessinsider.com/google-pays-225-million-for-violating-users-privacy-2012-11?IR=T

Please, we need a fighting chance against these intrusive violations of our personal lives and we aren't going to get it by continuing to use services from the same companies that continue to violate our rights in this regard!

I would like the option to reject emails from specific senders.
Specific email addresses or domains could be added to a blacklist.
Senders in the blacklist would be under two categories:

(A) Blocked
(B) Appear as Blocked

(A) If an incoming email is from a sender in the "Blocked" group the server would send an "undeliverable" message to the sender and the sender's email would not appear in my Inbox or my spam box at all.

(B) If an incoming email is from a sender in the "Appear as Blocked" group the server would send an "undeliverable" message to the sender but the sender's email would still appear in my Spam box.

I really like ProtonMail and use it as my primary mailing service. But one of the most tedious things about it is having to enter the two passwords every time i want to check my e-mail.

ProtonMail keeps logging me out after a few seconds/minutes of closing its tab, so i now have to keep a tab open in order to continuously check my e-mail. Furthermore, i'm using long passwords (in conjunction with Keepass) for more security, so it's not easy to type my passwords every few minutes.

I use ProtonMail on my desktop home computer, so there's no danger from someone having physical access to that PC. There should be a Remember Me/keep me logged in option for cases like this.

I have already communicated this issue to ProtonMail support. They kindly responded that "We applied that feature for security reasons, because many users are using ProtonMail from different devices". I don't really understand what this means, since i'm proposing a system which will keep me logged in on my current desktop computer, the one i,m using right now. Even if it's only for a certain amount of time, px 30 minutes or an hour.

I really hope there's a workaround/solution in the future for this, since ProtonMail is really great and this issue could potentially become a deal-breaker for me.

I am a paying subscriber with a custom domain I have migrated from google apps (hurraay) & I really do appreciate the service you are putting together. I have just tried to hit "reply to all" as I'm involved in a large conversation (music festival distribution) and was stopped from sending due to message limit. I appreciate your problem in that you need to guard against spam. This is a limitation that I think needs urgent attention as I can see it irritating quite a few users and I want ProtonMail to be successful. Good luck & keep up the good work!