diff --git a/mod/dfrn_notify.php b/mod/dfrn_notify.php
index 86e1484f79..e2f0336db6 100644
--- a/mod/dfrn_notify.php
+++ b/mod/dfrn_notify.php
@@ -217,6 +217,8 @@ function dfrn_dispatch_public($postdata)
 					WHERE NOT `blocked` AND `id` = ? LIMIT 1",
 					$contact['id']);
 
+	$importer['importer_uid']  = 0;
+
 	// This should never fail
 	if (!DBM::is_result($importer)) {
 		logger('Contact not found for address ' . $msg['author']);
diff --git a/src/Protocol/DFRN.php b/src/Protocol/DFRN.php
index 0263281968..bffcb2086f 100644
--- a/src/Protocol/DFRN.php
+++ b/src/Protocol/DFRN.php
@@ -2780,7 +2780,7 @@ class DFRN
 				logger('ignoring read-only contact '.$importer["id"]);
 				return;
 			}
-			if ($importer["uid"] == 0) {
+			if (($importer["uid"] == 0) && ($importer["importer_uid"] != 0)) {
 				logger("Contact ".$importer["id"]." isn't known to user ".$importer["importer_uid"].". The post will be ignored.", LOGGER_DEBUG);
 				return;
 			}