diff --git a/python/mailserver.py b/python/mailserver.py
index 0d62489..c67d6c3 100644
--- a/python/mailserver.py
+++ b/python/mailserver.py
@@ -89,7 +89,7 @@ class CustomSMTPServer(smtpd.SMTPServer):
 
             filenamebase = str(int(round(time.time() * 1000)))
 
-            for em in rcpttos:
+            for em.lower in rcpttos:
                 if not os.path.exists("../data/"+em):
                     os.mkdir( "../data/"+em, 0755 )
                 
@@ -133,4 +133,4 @@ if __name__ == '__main__':
     server = CustomSMTPServer(('0.0.0.0', port), None) # use your public IP here
     print "[i] Ready to receive Emails"
     print ""
-    asyncore.loop()
\ No newline at end of file
+    asyncore.loop()