I agree with other people here. That's should be a by default option. I just realise this wasn't possible and you need to do workarounds to make this possible. Too complicated.

Please just allow groups for Duo users. It should be easy for me to create an email address that routes to both users.

I tried using the SimpleLogin aliases but it does not work. In our case, both are using already SimpleLogin so we cannot use this approach.

There is not any workaround for this.

I want to echo so many below that this is a critical feature for Duo or Family plans. If this came as standard, I would sign up for Duo instantly.

So this can easily be accomplished with aliases. Simply add your partners email as one of the mailboxes in Simple login. They verify it and you can now add them to any alias you like.

How do you do the alias creation to be sent to both accounts? I tried from the SimpleLogin console but it only shows one address.

I got a Duo subscription with my partner and am kind of shocked this wasn’t part of that package. It’s a real pain to do what is a basic email task.

I didn't realize this wasn't possible! This is such an important feature and surely the reason anyone signs up to duo or family. I'm loving Proton so far and want to support you guys but this is really necessary for me to continue long term.

This is kinda the biggest reason to have a Duo account with your partner. To have a shared addres. Since there seems to be a workaround found in simple login by creating an alias that goes to two addresses, so this feels like it would be a 'quick-ish' win that could drive revenue

As this feature is the same requested for the business plan, I'll post here the other requests that would base on the same feature:
- https://protonmail.uservoice.com/forums/284483-proton-mail/suggestions/38347147-allow-shared-addresses-within-an-organization
- https://protonmail.uservoice.com/forums/935538-accounts-payments/suggestions/34619938-shared-inbox

Shocked that this is not part of the product, from day one!
Awaiting shared mailboxes. Switching to Proton the day they are introduced.

I wanted to switch to Duo but if I can't have shared email addresses I won't. My partner and I are sharing a single premium account and the Duo subscription would be making it harder.
Until this is updated, I won't update my subscription plan. That's a pitty.

Answering a question below for why I did not vote on this feature – I can create an alias and setup forwarding for everything arriving at that alias to my partner's account. It doesn't work like a shared folder, e.g. where an email I delete happens to both accounts, but it does allow mails arriving on that alias to be sent to both accounts. This is good enough for my scenarios already.

Was just about to sign up for a Family account and bring the family over to Proton, but the lack of a shared inbox for myself and my wife is a showstopper. Typically, all emails relating to the kids get sent to a shared gmail account, I was hoping it could be easily done with Proton but it seems like it doesn't.

Exactly that business case. I made a "family" mailbox I would like to share with my wife.

It's 2025, how is this not a feature for a pricing tier aimed at dual person households. It would be an amazing feature for the family plan too. I would instantly upgrade to duo or family plan if this was an option.

It blows my mind that this feature request is so low in terms of votes. I guess most people are using single user licences.
Regardless, this is a game changer for everyone on Duo, Family or Business.
We don't want this, we NEED this.

Lack of this feature is the main reason I’m not paying for the duo plan.

This is critical! I have just signed up for a Duo account, and I am reconsidering it just for this feature! Couples need to be able to share and manage one same email address from both accounts!

So when checking this again, I find out Proton actually has the feature, but reserves it exclusively for Business accounts: https://proton.me/support/groups

So for twice the price you can finally get a feature that is essential for every +1 person household. Odd strategy.