diff --git a/app/log.py b/app/log.py
index c8ca86a..0f46f8a 100644
--- a/app/log.py
+++ b/app/log.py
@@ -75,9 +75,10 @@ def log_uncaught_exceptions(_ex_cls, ex, tb):
     logging.critical(''.join(traceback.format_tb(tb)))
     print("\033[1;37;40m")
     print(stackprinter.format(ex, style="darkbg2", add_summary=True))
-    msg = stackprinter.format(ex)
-    send_mail(Config.ERRORS_TO, Config.ERRORS_FROM,
-              "Exception from musicmuster", msg)
+    if os.environ("MM_ENV") != "DEVELOPMENT":
+        msg = stackprinter.format(ex)
+        send_mail(Config.ERRORS_TO, Config.ERRORS_FROM,
+                  "Exception from musicmuster", msg)
 
 
 sys.excepthook = log_uncaught_exceptions