Support integration of custom domains in ProtonMail to allow Send/Receive from these emails. Effectively a high security Outlook.

This is impossible. It completely opens up your emails in plain text to be sent wholesale through IMAP/POP and SMTP. This is why there is a bridge app, so you can open emails on local machine without sending across a network unencrypted. This is not at all important.

While I understand that protons first goal is to ensure privacy and emails from other providers like outlook or gmail cannot be as private as emails that run directly through proton it is a hard truth that most of us are still forced to use gmail or outlook.

Mostly because of work, but there are surely even other reasons.

For proton to ultimately become the “main hub” I believe it should allow users to send and receive emails from other providers through SMTP and IMAP/POP

The user is responsible for this and should understand that sending emails through these accounts are less secure. Proton should still allow it, in the end the user bears the consequences of their own decision.

And while Proton cannot ensure the privacy of those emails they can still provider some services like checking trackers and other services with emails from those accounts.

Allowing this would finally let me achieve the goal of using proton for everything.

It would also be easier to convince others to switch to proton as the initial switch would not be so harsh since they can still send and receive emails from their current accounts making the switch more seamless.

While I understand that protons first goal is to ensure privacy and emails from other providers like outlook or gmail cannot be as private as emails that run directly through proton it is a hard truth that most of us are still forced to use gmail or outlook.

Mostly because of work, but there are surely even other reasons.

For proton to ultimately become the “main hub” I believe it should allow users to send and receive emails from other providers through SMTP and IMAP/POP

The user is responsible for this and should understand that sending emails through these accounts are less secure. Proton should still allow it, in the end the user bears the consequences of their own decision.

And while Proton cannot ensure the privacy of those emails they can still provider some services like checking trackers and other services with emails from those accounts.

Allowing this would finally let me achieve the goal of using proton for everything.

It would also be easier to convince others to switch to proton as the initial switch would not be so harsh since they can still send and receive emails from their current accounts making the switch more seamless.

It would be really great for Proton Mail to be able to act as an e-mail client, and being able to fetch e-mails by other providers (not only Gmail). Some kind of redirection, but which could be initiated from Proton Mail and *not* from the other provider.

I am critically missing the ability to get email synchronization over IMAP from other service providers. Now there is an import - but this is a one-time opportunity. I want to receive mail in the same way as an email client, so that the data is automatically received via IMAP as soon as a new email arrives.