They're busy creating a E2EE calculator (or something) noone asked for instead of making sure what they already have works properly across all eco systems.
this post was submitted on 01 Mar 2026
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Someone from Proton might read this, but it's also possible that won't happen. Probably you can report a bug or ask a question from the sheets web-app, but you could also leave a message here: https://protonmail.uservoice.com/ i assume collaboration is already high on their to-do list, but still.
Thanks. The share features is there, just not working for me correctly, so I put in a support ticket. Just figured I'd see if anyone had a similar issue here first.
No idea.
You absolutely can share with other users.
If you used a SimpleLogin address I'm not entirely surprised that wouldn't work. They aren't necessarily linked to a Proton account. And even if it is, it's all about privacy and likely can't be traced back to exactly which proton account. Not with only the email address to go on.
Truthfully that's a very strange error message. One that's at least in part absolutely false. So much so, that I'm doubting the credibility of this.
If you used a SimpleLogin address I'm not entirely surprised that wouldn't work.
Truthfully that's a very strange error message. So much so, that I'm doubting the credibility of this.
Huh?
The error message isn't only about SimpleLogin. It lists Proton as blocked first. It doesn't make sense for an error to explicitly prohibit their own "real" domains. Even if it failed with an email on their domain, they wouldn't have written an error that specifically intentionally excludes their domain.
When quoting me, you chose to skip a whole sentence in the middle.
One that’s at least in part absolutely false.
The Proton domain is that absolutely false part.
The proper formatting when omitting a section of a quote is to replace it with something like this [...] The brackets denote that what's between is not literally the quoted words, but is an edit of some kind. Usually for clarity, or in this case brevity. Without them it looks like you're being dishonest in your quotation by making invisible edits. So it should have looked like this.
Truthfully that’s a very strange error message. [...] So much so, that I’m doubting the credibility of this.
I omitted it because it wasn't relevant, for the sake of brevity.
The Proton domain is that absolutely false part.
How do you figure? Why would anyone lie about this?
I don't know, they may not be.
But lying or not, it's false all the same. You absolutely can share with proton email address. Even proton.me addresses. An error saying you can't is nonsensical.
It's cool that it works for you. Doesn't invalidate OP's bug find
Unless it was some kind of user error. It's impossible to know with the limited information they've given us.
They can't not be lying and also be false...
Even if they are being completely honest and truthful, the error message itself is false.