2015-03-28 11:23:05,812 INFO     [MainThread] Starting urgent message exchange with https://proliant.discworld.example.com/message-system.
2015-03-28 11:23:06,146 ERROR    [PoolThread-twisted.internet.reactor-1] Error contacting the server at https://proliant.discworld.example.com/message-system.
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/landscape/broker/transport.py", line 71, in exchange
    message_api)
  File "/usr/lib/python2.7/dist-packages/landscape/broker/transport.py", line 45, in _curl
    headers=headers, cainfo=self._pubkey, curl=curl))
  File "/usr/lib/python2.7/dist-packages/landscape/lib/fetch.py", line 109, in fetch
    raise PyCurlError(e.args[0], e.args[1])
PyCurlError: Error 60: server certificate verification failed. CAfile: /etc/landscape/landscape_server_ca.crt CRLfile: none
2015-03-28 11:23:06,150 INFO     [MainThread] Message exchange failed.
2015-03-28 11:23:06,151 INFO     [MainThread] Message exchange completed in 0.34s.