S/Mime Support
I would like the ability to import an S/Mime certificate and use to sign/encrypt messages to other users with S/Mime certificates.
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Felipe commented
Though we sure would prefer to use PGP, some companies, professionals and governments only accept S/MIME for digital signature and/or encryption, making this feature absolutely necessary.
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Vincent Cabal commented
Many partners use S/MIME. Please implement this feature.
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relo commented
Ich möchte meiner Stadt verschlüsselt schreiben, sie unterstützt aber nur S/Mime.
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Lucent commented
Might be worthwhile to generalize this suggestion to: support multipart encoding of email. The underlying issue is that Proton destroys other parts of the message, whether text/plain or multipart/signed (S/MIME) in favor of text/html, so if you import email from another service, other encodings are lost/destroyed.
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Marcin commented
Doing business requires S/MIME in many countries (PGP is not easily verifiable by others as S/MIME is). I have been using Visionary for many years, but recently have had to look around for an alternative precisely because of the lack of S/MIME. I think the additional implementation of S/MIME will only benefit Proton (convince more users to stay and join).
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Pavel Vedral commented
In my country e-government applications and digital identity applications supports only S/MIME. That's why I still have to use Thunderbird and ProtonMail Bridge.
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Thomas commented
My bank uses as well S/MIME and their IT has limited flexibility...
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Eros Comin commented
Implement the signature verification at least. Please.
My bank emails are S/MIME signed and I cannot verify them, even if I download the signature attachment. It seems to be Protonmail is screwing up the email content.
I believe that being able to verify a bank email is a critical security feature that should be implemented ASAP.
Thank you. -
Vasco Rodrigues commented
And decrypt and certify the signatures as well.
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MrMoi commented
@The Proton Team
Would it be possible to consider this one ? It has been submit 7years ago.
Thx
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kite commented
Please add this feature:)
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sarashino commented
Definitely this would be great. it's 2023.
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Michał J. commented
PGP pretty useless, not supported out of the box by mail email clients. Whereas S/MIME is by a large number, just to mention: Microsoft Outlook, Mozilla Thunderbird, The Bat!, ios Mail, Macos Mail, IBM Lotus Notes, Blackberry
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Lorenz Kozey commented
I appreciate all the work Proton has done with OpenPGP, but regardless we still need S/MIME capability as it is widely used and to verify if incoming emails are authentic or not.
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Sacha Zemp commented
no S/MIME in 2023? I will not switch to a paid account.
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Jean commented
It is so critical to be able to use S/MIME signature when sending messages. Many partners rely on that.
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Liam Price commented
Just purchased Proton Mail, and I'm really upset to find that this is still not working. I assumed that any email provider would allow SMIME. Really disappointed.
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Marcel Janus commented
The lack of this feature hinders me to switch my main email account to ProtonMail
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Daniel commented
PLEASE ADD THIS. it's totally ridiculous that this is not a feature. I am a paid user, and regretting it now that this is missing.
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Heath J. commented
its 2022, why would this not be built in.