### Level 3
#### Mail is also available as a hidden Tor service.
-https://www.torproject.org/docs/tor-hidden-service.html.en adapt to the needs of a mailserver.
-Client: [torbirdy](https://trac.torproject.org/projects/tor/wiki/torbirdy) is a useful Thunderbird extension to make use of such a hidden service.
+
+ * [Torproject: Tor Hidden Service documentation](https://www.torproject.org/docs/tor-hidden-service.html.en) → adapt to the needs of a mailserver.
+ * Client: [torbirdy](https://trac.torproject.org/projects/tor/wiki/torbirdy) is a useful Thunderbird extension to make use of such a hidden service.
## Filesystems and Storage