From 17c35c385d48776e310b0baccb5398e86408c14a Mon Sep 17 00:00:00 2001
From: Hans Salvisberg <salvis@users.noreply.github.com>
Date: Fri, 6 Feb 2015 00:27:41 +0100
Subject: [PATCH] Fix FATAL PLUGIN ERROR [whitelist]:  Can't call method "can"
 on unblessed reference at lib/Qpsmtpd/Config.pm line 38, <STDIN> line 1.

---
 lib/Qpsmtpd/Config.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Qpsmtpd/Config.pm b/lib/Qpsmtpd/Config.pm
index b918ed9..14d96a9 100644
--- a/lib/Qpsmtpd/Config.pm
+++ b/lib/Qpsmtpd/Config.pm
@@ -34,7 +34,7 @@ sub config {
 
     # first run the user_config hooks
     my ($rc, @config);
-    if (ref $type && $type->can('address')) {
+    if (ref $type && UNIVERSAL::can($type, 'address')) {
         ($rc, @config) = $qp->run_hooks_no_respond('user_config', $type, $c);
         if (defined $rc && $rc == OK) {
             return wantarray ? @config : $config[0];