diff --git a/ConfigParser.py b/ConfigParser.py
index eff4d3557..2d7c88ada 100755
--- a/ConfigParser.py
+++ b/ConfigParser.py
@@ -35,6 +35,8 @@ class Config:
   def __init__(self, cfg_file_name = "config.json"):
     f = open(cfg_file_name)
     self.cfg = json.loads(f.read())
+    self.tls_policies = {}
+    self.mx_map = {}
     for atr, val in self.cfg.items():
       # Verify each attribute of the structure
       if atr.startswith("comment"):
@@ -47,17 +49,32 @@ class Config:
       elif atr == "expires":
         self.expires = parse_timestamp(val)
       elif atr == "tls-policies":
-        self.tls_policies = {}
         for domain, policies in self.check_tls_policy_domains(val):
           if type(policies) != dict:
             raise TypeError, domain + "'s policies should be a dict: " + `policies`
           self.tls_policies[domain] = {} # being here enforces TLS at all
-          for policy, value in policies.items():
-            if policy == "min-tls-version":
+          for policy, v in policies.items():
+            value = str(v).lower()
+            if policy == "require-tls":
+              if value in ("true", "1", "yes"):
+                self.tls_policies[domain]["required"] = True
+              elif value in ("false", "0", "no"):
+                self.tls_policies[domain]["required"] = False
+              else:
+                raise ValueError, "Unknown require-tls value " + `value`
+            elif policy == "min-tls-version":
               reasonable = ["TLS", "TLSv1", "TLSv1.1", "TLSv1.2", "TLSv1.3"]
+              reasonable = map(string.lower, reasonable)
               if not value in reasonable:
                 raise ValueError, "Not a valid TLS version string: " + `value`
               self.tls_policies[domain]["min-tls-version"] = str(value)
+            elif policy == "enforce-mode":
+              if value == "enforce":
+                self.tls_policies[domain]["enforce"] = True
+              elif value == "log-only":
+                self.tls_policies[domain]["enforce"] = False
+              else:
+                raise ValueError, "Not a known enoforcement policy " + `value`
       elif atr == "acceptable-mxs":
         self.acceptable_mxs = val
         self.mx_domain_to_address_domains = collections.defaultdict(set)
@@ -70,6 +87,10 @@ class Config:
         pass
       else:
         sys.stderr.write("Unknown attribute: " + `atr` + "\n")
+    # XXX is it ever permissible to have a domain with an acceptable-mx 
+    # that does not point to a TLS security policy?  If not, check/warn/fail
+    # here
+    print self.tls_policies
 
   def get_address_domains(self, mx_hostname):
     labels = mx_hostname.split(".")
diff --git a/MTAConfigGenerator.py b/MTAConfigGenerator.py
index 15bc017ab..4d2f3432a 100755
--- a/MTAConfigGenerator.py
+++ b/MTAConfigGenerator.py
@@ -2,12 +2,13 @@
 
 import sys
 import string
-import os.path
+import os, os.path
 
 def parse_line(line_data):
   """
   Return the left and right hand sides of stripped, non-comment postfix
-  config line.
+  Return the (line number, left hand side, right hand side) of a stripped
+  postfix config line.
 
   Lines are like:
   smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
@@ -33,7 +34,7 @@ class PostfixConfigGenerator(MTAConfigGenerator):
     self.postfix_cf_file = self.find_postfix_cf()
     self.wrangle_existing_config()
     self.set_domainwise_tls_policies()
-    print "Configuration complete. Now run `sudo service postfix reload'."
+    os.system("sudo service postfix reload")
 
   def ensure_cf_var(self, var, ideal, also_acceptable):
     """
@@ -79,7 +80,7 @@ class PostfixConfigGenerator(MTAConfigGenerator):
     # Check we're currently accepting inbound STARTTLS sensibly
     self.ensure_cf_var("smtpd_use_tls", "yes", [])
     # Ideally we use it opportunistically in the outbound direction
-    self.ensure_cf_var("smtp_tls_security_level", "may", ["encrypt"])
+    self.ensure_cf_var("smtp_tls_security_level", "may", ["encrypt","dane"])
     # Maximum verbosity lets us collect failure information
     self.ensure_cf_var("smtp_tls_loglevel", "1", [])
     # Inject a reference to our per-domain policy map
@@ -109,7 +110,7 @@ class PostfixConfigGenerator(MTAConfigGenerator):
         self.new_cf += line
     self.new_cf += sep + new_cf_lines
 
-    print self.new_cf
+    #print self.new_cf
     f = open(self.fn, "w")
     f.write(self.new_cf)
     f.close()
diff --git a/README.md b/README.md
index 6e3d4212b..e50630ab8 100644
--- a/README.md
+++ b/README.md
@@ -90,9 +90,6 @@ The basic file format will be JSON with comments (http://blog.getify.com/json-co
         "eff.org": {
           "accept-mx-domains": ["*.eff.org"]
         }
-        "*.yahoodns.net": {
-           "require-valid-certificate": true,
-        }
       }
     }
 
diff --git a/Vagrantfile b/Vagrantfile
index 3ce93c917..b7153a7b8 100644
--- a/Vagrantfile
+++ b/Vagrantfile
@@ -16,6 +16,7 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
     valid.vm.hostname = "valid-example-recipient.com"
   end
   config.vm.synced_folder "vagrant-shared", "/vagrant"
+  config.vm.synced_folder "vagrant-shared/starttls-everywhere", "/vagrant/starttls-everywhere"
   config.vm.provision :shell, path: "vagrant-bootstrap.sh"
 
   config.vm.provider "virtualbox" do |vb|
diff --git a/vagrant-bootstrap.sh b/vagrant-bootstrap.sh
index 13593a0cc..82622edea 100755
--- a/vagrant-bootstrap.sh
+++ b/vagrant-bootstrap.sh
@@ -23,9 +23,9 @@ if [ "`hostname`" = "sender" ]; then
   (while sleep 10; do
     echo -e 'Subject: hi\n\nhi' | sendmail vagrant@valid-example-recipient.com
    done) &
-  ln -sf "/vagrant/postfix-config-sender-tls_policy.cf" /etc/postfix/tls_policy
+  #ln -sf "/vagrant/postfix-config-sender-tls_policy.cf" /etc/postfix/tls_policy
 fi
 
-ln -sf "/vagrant/postfix-config-`hostname`.cf" /etc/postfix/main.cf
-ln -sf "/vagrant/certificates" /etc/certificates
+#ln -sf "/vagrant/postfix-config-`hostname`.cf" /etc/postfix/main.cf
+#ln -sf "/vagrant/certificates" /etc/certificates
 postfix reload