diff --git a/peer.php b/peer.php
index f80abd8..368cc6b 100755
--- a/peer.php
+++ b/peer.php
@@ -188,7 +188,7 @@ elseif($q=="submitBlock"){
     _log('['.$_SERVER['REMOTE_ADDR']."] block ok, repropagating - $data[height]");
 
     // send it to all our peers
-//    system("php propagate.php block '$data[id]' all all linear > /dev/null 2>&1  &");
+    system("php propagate.php block '$data[id]' all all linear > /dev/null 2>&1  &");
     api_echo("block-ok");
 }
 // return the current block, used in syncing
diff --git a/propagate.php b/propagate.php
index e5f527f..f0a65d5 100755
--- a/propagate.php
+++ b/propagate.php
@@ -52,7 +52,10 @@ if((empty($peer)||$peer=='all')&&$type=="block"){
 	$res=file_put_contents("tmp/$id",$data);
 	if($res===false) die("Could not write the cache file");
 	// broadcasting to all peers
-	$r=$db->run("SELECT * FROM peers WHERE blacklisted < UNIX_TIMESTAMP() AND reserve=0");
+	$ewhr="";
+	// boradcasting to only certain peers
+	if($linear==true) $ewhr=" ORDER by RAND() LIMIT 5";
+	$r=$db->run("SELECT * FROM peers WHERE blacklisted < UNIX_TIMESTAMP() AND reserve=0 $ewhr");
 	foreach($r as $x) {
 		// encode the hostname in base58 and sanitize the IP to avoid any second order shell injections
 		$host=base58_encode($x['hostname']);
diff --git a/sanity.php b/sanity.php
index 65f0940..0f4a197 100755
--- a/sanity.php
+++ b/sanity.php
@@ -396,6 +396,9 @@ if($current['height']<$largest_height&&$largest_height>1){
 }
 
 
+// deleting mempool transactions older than 14 days
+$db->run("DELETE FROM `mempool` WHERE `date` < UNIX_TIMESTAMP()-(3600*24*14)");
+
 
 
 //rebroadcasting local transactions