+email_smtp_host = string(default='')
+email_smtp_port = integer(default=25)
+email_smtp_user = string(default=None)
+email_smtp_pass = string(default=None)
+
+# Set to false to disable registrations
+allow_registration = boolean(default=True)
+
+# tag parsing
+tags_delimiter = string(default=",")
+tags_max_length = integer(default=50)