diff --git a/fhem/CHANGED b/fhem/CHANGED
index d4add549f..30d010a2e 100644
--- a/fhem/CHANGED
+++ b/fhem/CHANGED
@@ -1,5 +1,6 @@
 # Add changes at the top of the list. Keep it in ASCII, and 80-char wide.
 # Do not insert empty lines here, update check depends on it.
+  - feature: notify/FileLog: add ignoreRegexp attribute (Forum #79684)
   - feature: 46_SmartPi: add decimal Attr, fix Notify bug
   - bugfix:  74_XiaomiFlowerSens: fix many Notify bugs
   - change:  backup is always started in the background (Forum #80237)
diff --git a/fhem/FHEM/91_notify.pm b/fhem/FHEM/91_notify.pm
index a64e14ad6..6fb92e9c4 100644
--- a/fhem/FHEM/91_notify.pm
+++ b/fhem/FHEM/91_notify.pm
@@ -16,7 +16,7 @@ notify_Initialize($)
   $hash->{NotifyFn} = "notify_Exec";
   $hash->{AttrFn}   = "notify_Attr";
   $hash->{AttrList} ="disable:1,0 disabledForIntervals forwardReturnValue:1,0 ".
-                     "readLog:1,0 showtime:1,0 addStateEvent:1,0";
+                     "readLog:1,0 showtime:1,0 addStateEvent:1,0 ignoreRegexp";
   $hash->{SetFn}    = "notify_Set";
   $hash->{StateFn}  = "notify_State";
   $hash->{FW_detailFn} = "notify_fhemwebFn";
@@ -72,6 +72,7 @@ notify_Exec($$)
 
   my $n = $dev->{NAME};
   my $re = $ntfy->{REGEXP};
+  my $iRe = AttrVal($ln, "ignoreRegexp", undef);
   my $events = deviceEvents($dev, AttrVal($ln, "addStateEvent", 0));
   return if(!$events); # Some previous notify deleted the array.
   my $max = int(@{$events});
@@ -89,6 +90,7 @@ notify_Exec($$)
       $found = ("$n:$s" =~ m/^$re$/);
     }
     if($found) {
+      next if($iRe && ($n =~ m/^$iRe$/ || "$n:$s" =~ m/^$iRe$/));
       Log3 $ln, 5, "Triggering $ln";
       my %specials= (
                 "%NAME" => $n,
@@ -133,6 +135,12 @@ notify_Attr(@)
     return;
   }
 
+  if($a[0] eq "set" && $a[2] eq "ignoreRegexp") {
+    return "Missing argument for ignoreRegexp" if(!defined($a[3]));
+    eval { "HALLO" =~ m/$a[3]/ };
+    return $@;
+  }
+
   if($a[0] eq "set" && $a[2] eq "disable") {
     $do = (!defined($a[3]) || $a[3]) ? 1 : 2;
   }
@@ -518,6 +526,13 @@ END
         FHEMWEB to display this value, when clicking "on" or "off", which is
         often not intended.</li>
 
+    <a name="ignoreRegexp"></a>
+    <li>ignoreRegexp regexp<br>
+        It is hard to create a regexp which is _not_ matching something, this
+        attribute helps in this case, as the event is ignored if matches the
+        argument. The syntax is the same as for the original regexp.
+        </li>
+
     <a name="readLog"></a>
     <li>readLog<br>
         Execute the notify for messages appearing in the FHEM Log. The device
@@ -735,6 +750,14 @@ END
         Meldungen im Log zu haben.
         </li>
 
+    <a name="ignoreRegexp"></a>
+    <li>ignoreRegexp regexp<br>
+        Es ist nicht immer einfach ein Regexp zu bauen, was etwas _nicht_
+        matcht. Dieses Attribu hilft in diesen F&auml;llen: das Event wird
+        ignoriert, falls den angegebenen Regexp. Syntax ist gleich wie in der
+        Definition.
+        </li>
+
     <a name="readLog"></a>
     <li>readLog<br>
         Das notify wird f&uuml;r Meldungen, die im FHEM-Log erscheinen,
diff --git a/fhem/FHEM/92_FileLog.pm b/fhem/FHEM/92_FileLog.pm
index 2215f277c..9ec4f0758 100644
--- a/fhem/FHEM/92_FileLog.pm
+++ b/fhem/FHEM/92_FileLog.pm
@@ -49,6 +49,7 @@ FileLog_Initialize($)
     disable:0,1
     disabledForIntervals
     eventOnThreshold
+    ignoreRegexp
     logtype
     mseclog:1,0
     nrarchive
@@ -181,6 +182,7 @@ FileLog_Log($$)
 
   my $n = $dev->{NAME};
   my $re = $log->{REGEXP};
+  my $iRe = AttrVal($ln, "ignoreRegexp", undef);
   my $max = int(@{$events});
   my $tn = $dev->{NTFY_TRIGGERTIME};
   if($log->{mseclog}) {
@@ -197,6 +199,7 @@ FileLog_Log($$)
     $s = "" if(!defined($s));
     my $t = (($ct && $ct->[$i]) ? $ct->[$i] : $tn);
     if($n =~ m/^$re$/ || "$n:$s" =~ m/^$re$/ || "$t:$n:$s" =~ m/^$re$/) {
+      next if($iRe && ($n =~ m/^$iRe$/ || "$n:$s" =~ m/^$iRe$/));
       $t =~ s/ /_/; # Makes it easier to parse with gnuplot
 
       if(!$switched) {
@@ -238,6 +241,12 @@ FileLog_Attr(@)
     return;
   }
 
+  if($a[0] eq "set" && $a[2] eq "ignoreRegexp") {
+    return "Missing argument for ignoreRegexp" if(!defined($a[3]));
+    eval { "HALLO" =~ m/$a[3]/ };
+    return $@;
+  }
+
   if($a[0] eq "set" && $a[2] eq "disable") {
     $do = (!defined($a[3]) || $a[3]) ? 1 : 2;
   }
@@ -1305,6 +1314,8 @@ FileLog_regexpFn($$)
         feature was implemented. A FHEM crash or kill will falsify the counter.
         </li><br>
 
+    <li><a href="#ignoreRegexp">ignoreRegexp</a></li>
+
     <a name="logtype"></a>
     <li>logtype<br>
         Used by the pgm2 webfrontend to offer gnuplot/SVG images made from the
@@ -1626,6 +1637,8 @@ FileLog_regexpFn($$)
         verf&auml;lscht die Z&auml;hlung.
         </li><br>
 
+    <li><a href="#ignoreRegexp">ignoreRegexp</a></li>
+
     <a name="logtype"></a>
     <li>logtype<br>
         Wird vom SVG Modul ben&ouml;tigt, um daten grafisch aufzubereiten.