mailinabox/conf/nginx.conf

# The HTTP (not SSL) server.

server {
	listen 80;
	listen [::]:80 default_server ipv6only=on;

	server_name $PUBLIC_HOSTNAME;

	# We'll expose this directory publicly over http.
	root $STORAGE_ROOT/www/static;

	index index.html index.htm;
	location / {
		# First attempt to serve request as file, then
		# as directory, then fall back to displaying a 404.
		try_files $uri $uri/ /index.html;
	}
	
	# Convenience redirect to https.
	rewrite ^/mail(/.*)?$ https://$PUBLIC_HOSTNAME/mail$1 permanent;
}

# The secure HTTPS server.

server {
	listen 443 ssl;

	server_name $PUBLIC_HOSTNAME;

	ssl_certificate $STORAGE_ROOT/ssl/ssl_certificate.pem;
	ssl_certificate_key $STORAGE_ROOT/ssl/ssl_private_key.pem;
	include /etc/nginx/nginx-ssl.conf;

	# We'll expose the same static directory under https.
	root $STORAGE_ROOT/www/static;

	index index.html index.htm;

	# Roundcube Webmail configuration.
	rewrite ^/mail$ /mail/ redirect;
	rewrite ^/mail/$ /mail/index.php;
	location /mail/ {
		index index.php;
		alias /var/lib/roundcube/;
	}
	location ~ /mail/.*\.php {
		include fastcgi_params;
		fastcgi_split_path_info ^/mail(/.*)()$;
		fastcgi_index index.php;
		fastcgi_param SCRIPT_FILENAME /var/lib/roundcube/$fastcgi_script_name;
		fastcgi_pass unix:/tmp/php-fastcgi.www-data.sock;
		client_max_body_size 20M;
	}

}