diff --git a/config/filter.d/exim.conf b/config/filter.d/exim.conf
index 62184fbf..252da07a 100644
--- a/config/filter.d/exim.conf
+++ b/config/filter.d/exim.conf
@@ -1,7 +1,7 @@
 # Fail2Ban configuration file
 #
 # Author: Cyril Jaquier
-#
+#         Daniel Black (rewrote with strong regexs)
 #
 
 [Definition]