Wrong MGF algorithms for encryption
<ul>
<li>The wrong MGF algorithms have been used for the outbound message encryption - the used algorithms were for the signature and not the encryption</li>
<li>Added a new dialog to automatically find out the mail server configuration by just knowing the replyto mail address for the notification mail setup</li>
<li>Fixed the problem "Comparison method violates its general contract" that happend very seldom on internal certificate access</li>
<li>Client enhancements: Added a notification badge for the configuration problems in the status bar, set up UI scalin of the list of configuration issues</li>
<li>Added support for the client credentials autorization (RFC 6749 4.4) in the OAuth2 plugin for the mail notification, added a related documentation</li>
</ul>