88 lines
3.3 KiB
Markdown
88 lines
3.3 KiB
Markdown
---
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title: Roundcube
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---
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<span class="badge badge--secondary">Support level: Community</span>
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## What is Roundcube
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> **Roundcube** is a browser-based multilingual IMAP client with an application-like user interface.
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> It provides full functionality you expect from an email client, including MIME support, address book, folder manipulation, message searching and spell checking
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>
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> -- https://roundcube.net
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This integration describes how to use Roundcube's oauth support with authentik to automatically sign into an email account.
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The mail server must support XOAUTH2 for both SMTPD and IMAP/POP. Postfix SMTP server can also use Dovecot for authentication which provides Postfix with xoauth2 capability without configuring it separately.
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## Preparation
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The following placeholders will be used:
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- `authentik.company` is the FQDN of the authentik install.
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Create a new oauth2 Scope Mapping which does not return the 'group' values and associate this mapping
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in the provider settings instead of the default oauth mapping.
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Under _Customization_ -> _Property Mappings_, create a _Scope Mapping_. Give it a name like "oauth2-Scope-dovecot". Set the scope name to `dovecotprofile` and the expression to the following
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```
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return {
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"name": request.user.name,
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"given_name": request.user.name,
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"family_name": "",
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"preferred_username": request.user.username,
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"nickname": request.user.username,
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#DO NOT INCLUDE groups
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}
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```
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Create an application in authentik. Create an _OAuth2/OpenID Provider_ with the following parameters:
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- Client Type: `Confidential`
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- Scopes: OpenID, Email, and the scope you created above
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- Signing Key: Select any available key
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## Roundcube Configuration
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```
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$config['oauth_provider'] = 'generic';
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$config['oauth_provider_name'] = 'authentik';
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$config['oauth_client_id'] = '<Client ID>';
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$config['oauth_client_secret'] = '<Client Secret>';
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$config['oauth_auth_uri'] = 'https://authentik.company/application/o/authorize/';
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$config['oauth_token_uri'] = 'https://authentik.company/application/o/token/';
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$config['oauth_identity_uri'] = 'https://authentik.company/application/o/userinfo/';
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$config['oauth_scope'] = "email openid dovecotprofile";
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$config['oauth_auth_parameters'] = [];
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$config['oauth_identity_fields'] = ['email'];
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```
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## Dovecot Configuration
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Add xoauth2 as an authentication mechanism and configure the following parameters in your Dovecot configuration.
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```
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tokeninfo_url = https://authentik.company/application/o/userinfo/?access_token=
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introspection_url = https://<Client ID>:<Client Secret>@authentik.company/application/o/introspect/
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introspection_mode = post
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force_introspection = yes
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active_attribute = active
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active_value = true
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username_attribute = email
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tls_ca_cert_file = /etc/ssl/certs/ca-certificates.crt
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```
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:::note
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With this setup Dovecot can also be used with other email clients that support XOAUTH2 authentication, however
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most available software (including Fair Email for Android and Thunderbird) only come with support for Gmail,
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Outlook etc with no way to configure custom email servers.
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:::
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## Additional Resources
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Please refer to the following for further configuration information:
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- https://roundcube.net
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- https://github.com/roundcube/roundcubemail/wiki/Configuration:-OAuth2
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- https://doc.dovecot.org/configuration_manual/authentication/oauth2/
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