[[!comment format=mdwn
 username="Grégoire"
 avatar="http://cdn.libravatar.org/avatar/5ed039572e7af206cbc97a7c59dcb0ad"
 subject="comment 2"
 date="2015-10-01T18:00:18Z"
 content="""
But I guess in this case either side could decide to stop the communication. Either because you have some [add-hoc list](https://support.google.com/a/answer/2520500?hl=en) or a heuristic like *connection to @foobar.com was encrypted last time so I expect it to be encrypted forever*
"""]]