diff --git a/docs/basics/email-security.md b/docs/basics/email-security.md index 60513510..d7610c34 100644 --- a/docs/basics/email-security.md +++ b/docs/basics/email-security.md @@ -15,13 +15,13 @@ The standard way to add E2EE to emails between different email providers is by u There is another standard which is popular with business called [S/MIME](https://en.wikipedia.org/wiki/S/MIME), however, it requires a certificate issued from a [Certificate Authority](https://en.wikipedia.org/wiki/Certificate_authority) (not all of them issue S/MIME certificates). It has support in [Google Workplace](https://support.google.com/a/topic/9061730) and [Outlook for Web or Exchange Server 2016, 2019](https://support.office.com/article/encrypt-messages-by-using-s-mime-in-outlook-on-the-web-878c79fc-7088-4b39-966f-14512658f480). -Even if you use OpenPGP, it does not support [forward secrecy](https://en.wikipedia.org/wiki/Forward_secrecy), which means if either your or the recipient's private key is ever stolen, all previous messages encrypted with it will be exposed. This is why we recommend [instant messengers](../real-time-communication.md) which implement forward secrecy over email for person-to-person communications whenever possible. +Even if you use OpenPGP, it does not support [forward secrecy](https://en.wikipedia.org/wiki/Forward_secrecy), which means if either your or the recipient's private key is ever stolen, all previous messages encrypted with it will be exposed. This is why we recommend [instant messengers](../essentials/real-time-communication.md) which implement forward secrecy over email for person-to-person communications whenever possible. ## What is the Web Key Directory standard? The Web Key Directory (WKD) standard allows email clients to discover the OpenPGP key for other mailboxes, even those hosted on a different provider. Email clients which support WKD will ask the recipient's server for a key based on the email address' domain name. For example, if you emailed `jonah@privacyguides.org`, your email client would ask `privacyguides.org` for Jonah's OpenPGP key, and if `privacyguides.org` has a key for that account, your message would be automatically encrypted. -In addition to the [email clients we recommend](../email-clients.md) which support WKD, some webmail providers also support WKD. Whether *your own* key is published to WKD for others to use depends on your domain configuration. If you use an [email provider](../email.md#openpgp-compatible-services) which supports WKD, such as Proton Mail or Mailbox.org, they can publish your OpenPGP key on their domain for you. +In addition to the [email clients we recommend](../productivity/email-clients.md) which support WKD, some webmail providers also support WKD. Whether *your own* key is published to WKD for others to use depends on your domain configuration. If you use an [email provider](../email.md#openpgp-compatible-services) which supports WKD, such as Proton Mail or Mailbox.org, they can publish your OpenPGP key on their domain for you. If you use your own custom domain, you will need to configure WKD separately. If you control your domain name, you can set up WKD regardless of your email provider. One easy way to do this is to use the "[WKD as a Service](https://keys.openpgp.org/about/usage#wkd-as-a-service)" feature from keys.openpgp.org, by setting a CNAME record on the `openpgpkey` subdomain of your domain pointed to `wkd.keys.openpgp.org`, then uploading your key to [keys.openpgp.org](https://keys.openpgp.org). Alternatively, you can [self-host WKD on your own web server](https://wiki.gnupg.org/WKDHosting). @@ -29,7 +29,7 @@ If you use a shared domain from a provider which doesn't support WKD, like @gmai ### What Email Clients Support E2EE? -Email providers which allow you to use standard access protocols like IMAP and SMTP can be used with any of the [email clients we recommend](../email-clients.md). Depending on the authentication method, this may lead to the decrease security if either the provider or the email client does not support OATH or a bridge application as [multifactor authentication](multi-factor-authentication.md) is not possible with plain password authentication. +Email providers which allow you to use standard access protocols like IMAP and SMTP can be used with any of the [email clients we recommend](../productivity/email-clients.md). Depending on the authentication method, this may lead to the decrease security if either the provider or the email client does not support OATH or a bridge application as [multifactor authentication](multi-factor-authentication.md) is not possible with plain password authentication. ### How Do I Protect My Private Keys?