[Users] A question about certificates

[Andreas Meyer]

Hello!

If I have "Client did not present a certificate" in the header,

Received: from mx.colino.net (srv.colino.net [212.83.157.151])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mail.anup.de (Postfix) with ESMTPS
 for <anmeyer at anup.de>; Sat, 10 May 2014 12:20:06 +0200 (CEST)

does this mean the MUA did not present a certificate or the
smtp-client? I guess it differs from who establishes the
connection.

But I also get "Client did not present a certificate" if I
specify a public certificate of the server in the settings of
claws-mail.

Greetings

  Andreas