send-email: fix obscure error when encryption=tls and smtp cannot connect

diff --git a/git-send-email.perl b/git-send-email.perl
index 0700d80afcf99dfafbd34731bf3c359b7d921ff3..dd821f70cd5e38afeff090e6d5a547096abcbddf 100755 (executable)
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -921,7 +921,7 @@ sub send_message
                        $smtp ||= Net::SMTP->new((defined $smtp_server_port)
                                                 ? "$smtp_server:$smtp_server_port"
                                                 : $smtp_server);
-                       if ($smtp_encryption eq 'tls') {
+                       if ($smtp_encryption eq 'tls' && $smtp) {
                                require Net::SMTP::SSL;
                                $smtp->command('STARTTLS');
                                $smtp->response();