changed send_to_contact function and don't check for if it's already sent.

cartero/utils/sending.py

@@ -84,11 +84,10 @@ class CampaignDeliver(object):
         return text
 
     def send_to_contact(self, contact):
-        if contact.sent == False:
-            msg = self.compose_email(contact)
-            msg.send()
-            contact.sent = True
-            contact.save()
+        msg = self.compose_email(contact)
+        msg.send()
+        contact.sent = True
+        contact.save()
 
     def compose_email(self, contact):
         html = self.campaign.email_template.html