The original message was received at Mon, 9 Nov 2015 17:05:06 +0300 from [70.169.227.42] ----- The following addresses had permanent fatal errors ----- dev at openvswitch.org ----- Transcript of session follows ----- ... while talking to 32.113.59.245: >>> RCPT To:<dev at openvswitch.org> <<< 550 5.1.1 <dev at openvswitch.org>... Invalid recipient