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diff --git a/lang/qt/src/keyformailboxjob.h b/lang/qt/src/keyformailboxjob.h
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+/*
+    keyformailboxjob.h
+
+    This file is part of qgpgme, the Qt API binding for gpgme
+    Copyright (c) 2016 Intevation GmbH
+
+    QGpgME is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.
+
+    QGpgME is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of this program with any edition of
+    the Qt library by Trolltech AS, Norway (or with modified versions
+    of Qt that use the same license as Qt), and distribute linked
+    combinations including the two.  You must obey the GNU General
+    Public License in all respects for all of the code used other than
+    Qt.  If you modify this file, you may extend this exception to
+    your version of the file, but you are not obligated to do so.  If
+    you do not wish to do so, delete this exception statement from
+    your version.
+*/
+#ifndef __KLEO_KEYFORMAILBOX_H__
+#define __KLEO_KEYFORMAILBOX_H__
+
+#include <QString>
+
+#include "job.h"
+
+#include <gpgme++/key.h>
+namespace GpgME
+{
+class Error;
+class KeyListResult;
+}
+
+namespace QGpgME
+{
+
+/**
+   @short Get the best key to use for a Mailbox
+
+   To use the keyformailboxjob, first obtain an instance from the
+   CryptoBackend and either exec it or start and
+   conncet the result() signals to a suitable slot.
+   The job will be automatically deleted in which
+   case the KeylistJob instance will have schedules it's own
+   destruction with a call to QObject::deleteLater().
+
+   The best key is defined as the key with a UID that has an
+   E-Mail that matches the mailbox provided. If multiple
+   keys are found the one with the highest validity is returned.
+
+   After result() is emitted, the
+   KeyListJob will schedule it's own destruction by calling
+   QObject::deleteLater().
+*/
+class QGPGME_EXPORT KeyForMailboxJob: public Job
+{
+    Q_OBJECT
+protected:
+    explicit KeyForMailboxJob(QObject *parent);
+
+public:
+    ~KeyForMailboxJob();
+
+    /**
+      Starts the operation. \a mailbox is the mailbox to
+      look for.
+
+      The result is the same as for the LocateKeysJob.
+
+      If \a canEncrypt is true, only keys that have a subkey for encryption
+      usage are returned. Use this if you need to select a
+      key for signing.
+    */
+    virtual GpgME::Error start(const QString &mailbox, bool canEncrypt = true) = 0;
+
+    virtual GpgME::KeyListResult exec(const QString &mailbox, bool canEncrypt, GpgME::Key &key, GpgME::UserID &uid) = 0;
+
+Q_SIGNALS:
+    /** The result. \a Key is the key found or a Null key.
+     *
+     * The userid is the uid where the mailbox matches.
+     *
+     * The auditlog params are always null / empty.
+     */
+    void result(const GpgME::KeyListResult &result, const GpgME::Key &key, const GpgME::UserID &uid, const QString &auditLogAsHtml = QString(), const GpgME::Error &auditLogError = GpgME::Error());
+};
+
+}
+#endif