diff --git a/config/filter.d/postfix.conf b/config/filter.d/postfix.conf
index 7faec922..fd71c463 100644
--- a/config/filter.d/postfix.conf
+++ b/config/filter.d/postfix.conf
@@ -54,7 +54,7 @@ mdre-errors = ^from [^[]*\[<HOST>\]%(_port)s$
 
 # Extra mode "screendnsbl", triggered on postfix/postscreen[<PID>]: DNSBL rank <NUM> for [<HOST>]:<PORT>
 mdpr-screendnsbl = DNSBL rank \d+
-mdre-screendnsbl = for \[<HOST>\]%(_port)s
+mdre-screendnsbl = ^for \[<HOST>\]%(_port)s
 
 
 failregex = <mdre-<mode>>