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Diff from to


+from __future__ import unicode_literals
+import re
 from datetime import datetime
 from django.conf import settings
                 except KeyError:
-                result = ms.listSubscribe(id=mc_id[i], email_address=post['EMAIL'])
+                if post.get('EMAIL') and re.match("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$", post.get('EMAIL')) != None:
+                    result = ms.listSubscribe(id=mc_id[i], email_address=post.get('EMAIL'))
+                else:
+                    return HttpResponse("Please enter a real email address.")
             return HttpResponse("<div class='alert-message success'><a onclick=\"$('.alert-message').hide();\" class='close'>x</a><p><strong>Well done!</strong> To complete the subscription process, please click the link in the email we just sent you.</p></div>")
             return HttpResponse("Our email provider is current experience technical difficulties.")
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