update docs a bit

docs/index.md

@@ -54,16 +54,24 @@ Configuring DNS
 
 Your server is set up as a nameserver to provide DNS information for the hostname you chose as well as the domain name in your email address. Go to your domain name registrar and tell it that `ns1.yourhostname` is your nameserver (DNS server). If it requires two, use `ns1.yourhostname` and `ns2.yourhostname`.
 
-For instance, in my case, I could tell my domain name registrar that `ns1.box.occams.info` and `ns2.box.occams.info` are the nameservers for `occams.info`.
+For instance, in my case, I could tell my domain name registrar that `ns1.box.occams.info` and `ns2.box.occams.info` are the nameservers for `occams.info`. You'll also have to plug in the IP address of the machine.
 
-(In a more complex setup, you may have a different nameserver for your domain. In this case, you'll delegate DNS to your box for the box's own subdomain. In your main DNS, add a record like "box.occams.info. 3600 IN NS ns1.box.occams.info." and a second one for `ns2` (the final period may be important). This sets who is the authoritative server for the hostname. You'll then also need "ns1.box.occams.info IN A 10.20.30.40" providing the IP address of the authoritative server (and repeat for `ns2`). Then add an MX record on your main domain pointing to the hostname you chose for your server here so that you delegate mail for the domain to your new server using a record like "occams.info. 3600 IN MX 1 box.occams.info." (again the period at the end may be important). You'll also want to put an SPF record on your main domain like "occams.info IN TXT "v=spf1 a mx -all" ".)
+Optionally, to activate DNSSEC, you'll need to get a DS record from the box. While logged in on the box, run:
+
+	curl http://localhost:10222/dns/ds
+
+This will print DS records for the domains that your box thinks it is the authoritative name server for. Copy the DS record and follow the DS record instructions provided by your domain name registrar.
 
 Checking Your Mail
 ------------------
 
 You can access your email at https://`hostname`/mail, where `hostname` is again the hostname you chose at the start.
 
-If you want to set up a desktop mail client like Thunderbird, your IMAP and SMTP server is the hostname you chose at the top. For IMAP, you must choose SSL and port 993. For SMTP, you must choose STARTTLS and port 587. Your username is your complete email address. And your password you entered during server setup earlier. You're using a "self-signed certificate" for SSL connections, so you'll get security warnings when you try to read and send mail. It's safe to permanently ignore the warning the first time you see it (but not if you see the same warning later on).
+If you want to set up a desktop mail client like Thunderbird, your IMAP and SMTP server is the hostname you chose at the top. For IMAP, you must choose SSL and port 993. For SMTP, you must choose STARTTLS and port 587. Your username is your complete email address. And your password you entered during server setup earlier.
+
+You're using a "self-signed certificate" for SSL connections, so you'll get security warnings when you try to read and send mail. It's safe to permanently ignore the warning the first time you see it (but not if you see the same warning later on).
+
+Mail-in-a-Box uses greylisting to cut down on spam. The first time you receive an email from a recipient, it may be delayed for five minutes.
 
 Checking that it Worked
 -----------------------