diff --git a/include/acl_selectors.php b/include/acl_selectors.php
index 461ad0c36..675339559 100644
--- a/include/acl_selectors.php
+++ b/include/acl_selectors.php
@@ -227,6 +227,23 @@ function fixacl(&$item) {
 	$item = intval(str_replace(array('<','>'),array('',''),$item));
 }
 
+function prune_deadguys($arr) {
+
+	if(! $arr)
+		return $arr;
+	$str = dbesc(implode(',',$arr));
+	$r = q("select id from contact where id in ( " . $str . ") and blocked = 0 and pending = 0 and archive = 0 ");
+	if($r) {
+		$ret = array();
+		foreach($r as $rr) 
+			$ret[] = $rr['id'];
+		return $ret;
+	}
+	return array();
+}
+
+
+
 function populate_acl($user = null,$celeb = false) {
 
 	$allow_cid = $allow_gid = $deny_cid = $deny_gid = false;
@@ -246,6 +263,14 @@ function populate_acl($user = null,$celeb = false) {
 		array_walk($deny_gid,'fixacl');
 	}
 
+	$allow_cid = prune_deadguys($allow_cid);
+
+	// We shouldn't need to prune deadguys from the block list. Either way they can't get the message.
+	// Also no point enumerating groups and checking them, that will take place on delivery.
+
+//	$deny_cid = prune_deadguys($deny_cid);
+
+
 	/*$o = '';
 	$o .= '<div id="acl-wrapper">';
 	$o .= '<div id="acl-permit-outer-wrapper">';
diff --git a/include/group.php b/include/group.php
index 7ede242c0..aa226688a 100644
--- a/include/group.php
+++ b/include/group.php
@@ -279,7 +279,7 @@ function group_side($every="contacts",$each="group",$edit = false, $group_id = 0
 	return $o;
 }
 
-function expand_groups($a) {
+function expand_groups($a,$check_dead = false) {
 	if(! (is_array($a) && count($a)))
 		return array();
 	$groups = implode(',', $a);
@@ -289,6 +289,10 @@ function expand_groups($a) {
 	if(count($r))
 		foreach($r as $rr)
 			$ret[] = $rr['contact-id'];
+	if($check_dead) {
+		require_once('include/acl_selectors.php');
+		$ret = prune_deadguys($ret);
+	}
 	return $ret;
 }
 
diff --git a/include/notifier.php b/include/notifier.php
index 091d09b56..3398254b6 100644
--- a/include/notifier.php
+++ b/include/notifier.php
@@ -309,7 +309,7 @@ function notifier_run(&$argv, &$argc){
 			}
 
 			$allow_people = expand_acl($parent['allow_cid']);
-			$allow_groups = expand_groups(expand_acl($parent['allow_gid']));
+			$allow_groups = expand_groups(expand_acl($parent['allow_gid']),true);
 			$deny_people  = expand_acl($parent['deny_cid']);
 			$deny_groups  = expand_groups(expand_acl($parent['deny_gid']));