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+---
+title: "FreeBSD email server - Part +: Calendars and contacts"
+date: 2016-11-24 08:26:09
+tags: Tutorial FreeBSD Email CalDAV CardDAV
+layout: post
+---
+
+This guide is an addition to the [FreeBSD email server series][tutorial-email].
+It is not required for your email server to operate properly, but it is often
+considered a very important feature for those who want to switch from a third
+party email provider to their own solution. It does build upon the completed
+series, so be sure to work through that before starting on this.
+
+## Install required packages
+{% highlight sh %}
+pkg install py27-radicale
+{% endhighlight %}
+
+## Configure Radicale
+### /usr/local/etc/radicale/config
+Open up the `/usr/local/etc/radicale/config` file, and update each `[block]`.
+
+#### [server]
+The server is binding to `localhost` only. This way it is not accessible on
+`:5232` from outside the server. Outside access will be provided through an
+nginx reverse proxy instead.
+
+{% highlight ini %}
+hosts = 127.1:5232
+daemon = True
+
+dns_lookup = True
+
+base_prefix = /
+can_skip_base_prefix = False
+
+realm = Radicale - Password required
+{% endhighlight %}
+
+#### [encoding]
+{% highlight ini %}
+request = utf-8
+stock = utf-8
+{% endhighlight %}
+
+#### [auth]
+{% highlight ini %}
+type = IMAP
+
+imap_hostname = localhost
+imap_port = 143
+imap_ssl = False
+{% endhighlight %}
+
+#### [storage]
+{% highlight ini %}
+type = filesystem
+filesystem_folder = /usr/local/share/radicale
+{% endhighlight %}
+
+#### [logging]
+{% highlight ini %}
+config = /usr/local/etc/radicale/logging
+{% endhighlight %}
+
+### /usr/local/etc/radicale/logging
+This file is fine on the defaults in FreeBSD 11. This saves you from
+configuring a little bit.
+
+## Configure Dovecot
+### Enable imap
+This option was disabled in the [IMAP server tutorial][tutorial-email],
+however, if we want to auth using the same credentials as the mailserver, this
+option is needed again. Bind it to `localhost`, so it can only be used
+internally. In `/usr/local/etc/dovecont/conf.d/10-master.conf`, enable the
+`imap` port again:
+
+```
+...
+service imap-login {
+    inet_listener imap {
+        address = 127.1
+        port = 143
+    }
+    ...
+}
+...
+```
+
+## Configure nginx
+To make using the service easier, you can setup [nginx][nginx] to act as a
+reverse proxy. If you followed the [webserver tutorial][tutorial-webserver],
+you already have the basics for this set up. I do recommend you check this out,
+as I will only explain how to configure a virtual host to deal with the reverse
+proxy here.
+
+### Setup a reverse proxy
+Assuming you have taken the crash-course in setting up the nginx webserver, you
+can attain a reverse proxy using the following config block. Note that this block
+only does HTTPS, as I use HTTP only to redirect to HTTPS.
+
+{% highlight nginx %}
+# static HTTPS
+server {
+    # listeners
+    listen       443 ssl;
+    server_name  radicale.domain.tld;
+
+    # enable HSTS
+    add_header  Strict-Transport-Security "max-age=31536000; includeSubdomains; preload";
+
+    # keys
+    ssl_certificate      /usr/local/etc/letsencrypt/live/domain.tld/fullchain.pem;
+    ssl_certificate_key  /usr/local/etc/letsencrypt/live/domain.tld/privkey.pem;
+
+    # / handler
+    location / {
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_pass http://127.1:5232;
+    }
+}
+{% endhighlight %}
+
+## Enable the service at startup
+{% highlight sh %}
+echo 'radicale_enable="YES"' >> /etc/rc.conf.local
+{% endhighlight %}
+
+## Start the server
+{% highlight sh %}
+service radicale start
+{% endhighlight %}
+
+[nginx]: https://www.nginx.com/
+[tutorial-email]: {{ "/post/2016/10/31/freebsd-mailserver-part-1-preparations/" | prepend: site.baseurl }}
+[tutorial-webserver]: {{ "/post/2016/10/25/setup-nginx-with-lets-encrypt-ssl/" | prepend: site.baseurl }}