SSO support
Allow employees to login using central user repository such as AD or OneLogin, typically using SAML.

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ludwig commented
SSO support is very important for business!
Apart from the mountain of normal benefits, it's also very useful for authentication using methods that Proton doesn't natively support. Like passkeys and smart card certificates, or other more novel methods.Both SAML and OIDC support would be great but if you can only do one I think you should do OIDC.
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RM commented
I agree - this is quite critical... It's implemented for Proton Pass and Proton VPN, but to me it seems like the priority should be Mail and calendar... Or even better, all products, considering that sessions authentication is shared across products anyways when using built-in auth...
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MC commented
This is really critical for business users.
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pierozi commented
I know this feature has low votes, but damn we are in 2021, SSO is now a requirement for most enterprises.