diff --git a/pinaxcon/settings.py b/pinaxcon/settings.py
index 2d744d5..1ee7dde 100644
--- a/pinaxcon/settings.py
+++ b/pinaxcon/settings.py
@@ -15,7 +15,7 @@ DATABASES = {
     }
 }
 
-UNPREPEND_WWW = bool(os.environ.get("DJANGO_UNPREPEND_WWW", False))
+UNPREPEND_WWW = bool(int(os.environ.get("DJANGO_UNPREPEND_WWW", "0")))
 
 # HEROKU: Update database configuration with $DATABASE_URL.
 import dj_database_url
@@ -258,11 +258,12 @@ EMAIL_HOST = os.environ.get("DJANGO_EMAIL_HOST", "")
 EMAIL_PORT = int(os.environ.get("DJANGO_EMAIL_PORT", 25))
 EMAIL_HOST_USER = os.environ.get("DJANGO_EMAIL_HOST_USER", "")
 EMAIL_HOST_PASSWORD = os.environ.get("DJANGO_EMAIL_HOST_PASSWORD", "")
-EMAIL_USE_TLS = bool(os.environ.get("DJANGO_EMAIL_USE_TLS", False))
-EMAIL_USE_SSL = bool(os.environ.get("DJANGO_EMAIL_USE_SSL", False))
+EMAIL_USE_TLS = bool(int(os.environ.get("DJANGO_EMAIL_USE_TLS", "0")))
+EMAIL_USE_SSL = bool(int(os.environ.get("DJANGO_EMAIL_USE_SSL", "0")))
+
 
 # We need to explicitly switch on signups.
-ACCOUNT_OPEN_SIGNUP = bool(os.environ.get("DJANGO_ACCOUNT_OPEN_SIGNUP", False))
+ACCOUNT_OPEN_SIGNUP = bool(int(os.environ.get("DJANGO_ACCOUNT_OPEN_SIGNUP", "0")))
 ACCOUNT_EMAIL_UNIQUE = True
 ACCOUNT_EMAIL_CONFIRMATION_REQUIRED = False if DEBUG else True
 ACCOUNT_LOGIN_REDIRECT_URL = "home"