[ovs-dev] Returned mail: Data format error

[The Post Office]

The original message was received at Thu, 30 Jun 2016 11:59:53 +0800 from openvswitch.org [7.180.112.54]

----- The following addresses had permanent fatal errors -----
<dev at openvswitch.org>

----- Transcript of session follows -----
... while talking to 9.38.44.52:
550 5.1.2 <dev at openvswitch.org>... Host unknown (Name server: host not found)