diff --git a/src/core/core.pri b/src/core/core.pri
index 8e02c50c2..74dd529ec 100644
--- a/src/core/core.pri
+++ b/src/core/core.pri
@@ -10,8 +10,6 @@ HEADERS += \
     $$PWD/filesystemwatcher.h \
     $$PWD/scannedfoldersmodel.h \
     $$PWD/qinisettings.h \
-    $$PWD/smtp.h \
-    $$PWD/dnsupdater.h \
     $$PWD/logger.h \
     $$PWD/preferences.h \
     $$PWD/qtracker.h \
@@ -21,7 +19,10 @@ HEADERS += \
     $$PWD/http/responsegenerator.h \
     $$PWD/http/server.h \
     $$PWD/http/types.h \
-    $$PWD/http/responsebuilder.h
+    $$PWD/http/responsebuilder.h \
+    $$PWD/net/dnsupdater.h \
+    $$PWD/net/reverseresolution.h \
+    $$PWD/net/smtp.h
 
 SOURCES += \
     $$PWD/downloadthread.cpp \
@@ -29,8 +30,6 @@ SOURCES += \
     $$PWD/torrentpersistentdata.cpp \
     $$PWD/misc.cpp \
     $$PWD/fs_utils.cpp \
-    $$PWD/smtp.cpp \
-    $$PWD/dnsupdater.cpp \
     $$PWD/logger.cpp \
     $$PWD/preferences.cpp \
     $$PWD/qtracker.cpp \
@@ -38,4 +37,7 @@ SOURCES += \
     $$PWD/http/requestparser.cpp \
     $$PWD/http/responsegenerator.cpp \
     $$PWD/http/server.cpp \
-    $$PWD/http/responsebuilder.cpp
+    $$PWD/http/responsebuilder.cpp \
+    $$PWD/net/dnsupdater.cpp \
+    $$PWD/net/reverseresolution.cpp \
+    $$PWD/net/smtp.cpp
diff --git a/src/core/dnsupdater.cpp b/src/core/net/dnsupdater.cpp
similarity index 99%
rename from src/core/dnsupdater.cpp
rename to src/core/net/dnsupdater.cpp
index b7d1a0d9c..5d176e733 100644
--- a/src/core/dnsupdater.cpp
+++ b/src/core/net/dnsupdater.cpp
@@ -38,6 +38,8 @@
 #include "dnsupdater.h"
 #include "logger.h"
 
+using namespace Net;
+
 DNSUpdater::DNSUpdater(QObject *parent) :
   QObject(parent), m_state(OK), m_service(DNS::NONE)
 {
diff --git a/src/core/dnsupdater.h b/src/core/net/dnsupdater.h
similarity index 99%
rename from src/core/dnsupdater.h
rename to src/core/net/dnsupdater.h
index 3ea9a5cd3..a130ef423 100644
--- a/src/core/dnsupdater.h
+++ b/src/core/net/dnsupdater.h
@@ -38,6 +38,9 @@
 #include <QTimer>
 #include "preferences.h"
 
+namespace Net
+{
+
 /*!
  * Based on http://www.dyndns.com/developers/specs/
  */
@@ -78,4 +81,6 @@ private:
   enum State { OK, INVALID_CREDS, FATAL };
 };
 
+}
+
 #endif // DNSUPDATER_H
diff --git a/src/gui/reverseresolution.h b/src/core/net/reverseresolution.cpp
similarity index 59%
rename from src/gui/reverseresolution.h
rename to src/core/net/reverseresolution.cpp
index b7971adc2..d41280f8e 100644
--- a/src/gui/reverseresolution.h
+++ b/src/core/net/reverseresolution.cpp
@@ -1,5 +1,5 @@
 /*
- * Bittorrent Client using Qt4 and libtorrent.
+ * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2006  Christophe Dumez
  *
  * This program is free software; you can redistribute it and/or
@@ -28,14 +28,9 @@
  * Contact : chris@qbittorrent.org
  */
 
-#ifndef REVERSERESOLUTION_H
-#define REVERSERESOLUTION_H
-
-#include <QList>
-#include <QCache>
 #include <QDebug>
 #include <QHostInfo>
-#include "misc.h"
+#include <QString>
 
 #include <boost/version.hpp>
 #if BOOST_VERSION < 103500
@@ -44,62 +39,56 @@
 #include <boost/asio/ip/tcp.hpp>
 #endif
 
+#include "reverseresolution.h"
+
 const int CACHE_SIZE = 500;
 
-class ReverseResolution: public QObject {
-  Q_OBJECT
-  Q_DISABLE_COPY(ReverseResolution)
+using namespace Net;
+
+static inline bool isUsefulHostName(const QString &hostname, const QString &ip)
+{
+    return (!hostname.isEmpty() && hostname != ip);
+}
 
-public:
-  explicit ReverseResolution(QObject* parent): QObject(parent) {
+ReverseResolution::ReverseResolution(QObject *parent)
+    : QObject(parent)
+{
     m_cache.setMaxCost(CACHE_SIZE);
-  }
+}
 
-  ~ReverseResolution() {
+ReverseResolution::~ReverseResolution()
+{
     qDebug("Deleting host name resolver...");
-  }
+}
 
-  void resolve(const QString &ip) {
+void ReverseResolution::resolve(const QString &ip)
+{
     if (m_cache.contains(ip)) {
-      const QString& hostname = *m_cache.object(ip);
-      qDebug() << "Resolved host name using cache: " << ip << " -> " << hostname;
-      if (isUsefulHostName(hostname, ip))
-        emit ip_resolved(ip, hostname);
-      return;
+        const QString &hostname = *m_cache.object(ip);
+        qDebug() << "Resolved host name using cache: " << ip << " -> " << hostname;
+        if (isUsefulHostName(hostname, ip))
+            emit ipResolved(ip, hostname);
     }
-    // Actually resolve the ip
-    m_lookups.insert(QHostInfo::lookupHost(ip, this, SLOT(hostResolved(QHostInfo))), ip);
-  }
-
-signals:
-  void ip_resolved(const QString &ip, const QString &hostname);
+    else {
+        // Actually resolve the ip
+        m_lookups.insert(QHostInfo::lookupHost(ip, this, SLOT(hostResolved(QHostInfo))), ip);
+    }
+}
 
-private slots:
-  void hostResolved(const QHostInfo& host) {
-    const QString& ip = m_lookups.take(host.lookupId());
+void ReverseResolution::hostResolved(const QHostInfo &host)
+{
+    const QString &ip = m_lookups.take(host.lookupId());
     Q_ASSERT(!ip.isNull());
 
     if (host.error() != QHostInfo::NoError) {
-      qDebug() << "DNS Reverse resolution error: " << host.errorString();
-      return;
+        qDebug() << "DNS Reverse resolution error: " << host.errorString();
+        return;
     }
 
-    const QString& hostname = host.hostName();
+    const QString &hostname = host.hostName();
 
     qDebug() << Q_FUNC_INFO << ip << QString("->") << hostname;
     m_cache.insert(ip, new QString(hostname));
     if (isUsefulHostName(hostname, ip))
-      emit ip_resolved(ip, hostname);
-  }
-
-private:
-  static inline bool isUsefulHostName(const QString& hostname, const QString& ip) {
-    return (!hostname.isEmpty() && hostname != ip);
-  }
-
-  QHash<int /* LookupID */, QString /* IP */> m_lookups;
-  QCache<QString /* IP */, QString /* HostName */> m_cache;
-};
-
-
-#endif // REVERSERESOLUTION_H
+        emit ipResolved(ip, hostname);
+}
diff --git a/src/core/net/reverseresolution.h b/src/core/net/reverseresolution.h
new file mode 100644
index 000000000..ef181762a
--- /dev/null
+++ b/src/core/net/reverseresolution.h
@@ -0,0 +1,67 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2006  Christophe Dumez
+ *
+ * This program 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.
+ *
+ * This program 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 this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ *
+ * Contact : chris@qbittorrent.org
+ */
+
+#ifndef NET_REVERSERESOLUTION_H
+#define NET_REVERSERESOLUTION_H
+
+#include <QCache>
+#include <QObject>
+
+QT_BEGIN_NAMESPACE
+class QHostInfo;
+class QString;
+QT_END_NAMESPACE
+
+namespace Net
+{
+    class ReverseResolution : public QObject
+    {
+        Q_OBJECT
+        Q_DISABLE_COPY(ReverseResolution)
+
+    public:
+        explicit ReverseResolution(QObject *parent = 0);
+        ~ReverseResolution();
+
+        void resolve(const QString &ip);
+
+    signals:
+        void ipResolved(const QString &ip, const QString &hostname);
+
+    private slots:
+        void hostResolved(const QHostInfo &host);
+
+    private:
+        QHash<int /* LookupID */, QString /* IP */> m_lookups;
+        QCache<QString /* IP */, QString /* HostName */> m_cache;
+    };
+}
+
+#endif // NET_REVERSERESOLUTION_H
diff --git a/src/core/smtp.cpp b/src/core/net/smtp.cpp
similarity index 99%
rename from src/core/smtp.cpp
rename to src/core/net/smtp.cpp
index f90fcc5a7..f895c1924 100644
--- a/src/core/smtp.cpp
+++ b/src/core/net/smtp.cpp
@@ -1,5 +1,5 @@
 /*
- * Bittorrent Client using Qt4 and libtorrent.
+ * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2011  Christophe Dumez
  *
  * This program is free software; you can redistribute it and/or
@@ -89,6 +89,8 @@ QByteArray determineFQDN()
 }
 } // namespace
 
+using namespace Net;
+
 Smtp::Smtp(QObject *parent): QObject(parent),
   state(Init), use_ssl(false) {
 #ifndef QT_NO_OPENSSL
diff --git a/src/core/smtp.h b/src/core/net/smtp.h
similarity index 97%
rename from src/core/smtp.h
rename to src/core/net/smtp.h
index bb80a3a85..9b332416d 100644
--- a/src/core/smtp.h
+++ b/src/core/net/smtp.h
@@ -1,5 +1,5 @@
 /*
- * Bittorrent Client using Qt4 and libtorrent.
+ * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2011  Christophe Dumez
  *
  * This program is free software; you can redistribute it and/or
@@ -50,6 +50,9 @@ class QTcpSocket;
 class QTextCodec;
 QT_END_NAMESPACE
 
+namespace Net
+{
+
 class Smtp : public QObject {
   Q_OBJECT
 
@@ -96,4 +99,7 @@ private:
   QString username;
   QString password;
 };
+
+}
+
 #endif
diff --git a/src/core/qtlibtorrent/qbtsession.cpp b/src/core/qtlibtorrent/qbtsession.cpp
index fc42aa6da..01ee5076e 100644
--- a/src/core/qtlibtorrent/qbtsession.cpp
+++ b/src/core/qtlibtorrent/qbtsession.cpp
@@ -38,7 +38,7 @@
 #include <QProcess>
 #include <QCoreApplication>
 
-#include "smtp.h"
+#include "core/net/smtp.h"
 #include "filesystemwatcher.h"
 #include "torrentspeedmonitor.h"
 #include "torrentstatistics.h"
@@ -2046,7 +2046,7 @@ void QBtSession::sendNotificationEmail(const QTorrentHandle &h) {
     content += tr("The torrent was downloaded in %1.", "The torrent was downloaded in 1 hour and 20 seconds").arg(misc::userFriendlyDuration(status.active_time)) + "\n\n\n";
     content += tr("Thank you for using qBittorrent.") + "\n";
     // Send the notification email
-    Smtp *sender = new Smtp(this);
+    Net::Smtp *sender = new Net::Smtp(this);
     sender->sendMail("notification@qbittorrent.org", Preferences::instance()->getMailNotificationEmail(), tr("[qBittorrent] %1 has finished downloading").arg(h.name()), content);
 }
 
diff --git a/src/gui/gui.pri b/src/gui/gui.pri
index 3ba11cd54..9665fe4f2 100644
--- a/src/gui/gui.pri
+++ b/src/gui/gui.pri
@@ -22,7 +22,6 @@ HEADERS += \
     $$PWD/torrentcontenttreeview.h \
     $$PWD/deletionconfirmationdlg.h \
     $$PWD/statusbar.h \
-    $$PWD/reverseresolution.h \
     $$PWD/ico.h \
     $$PWD/speedlimitdlg.h \
     $$PWD/about_imp.h \
diff --git a/src/gui/options_imp.cpp b/src/gui/options_imp.cpp
index fdc85d96f..e125ee2dc 100644
--- a/src/gui/options_imp.cpp
+++ b/src/gui/options_imp.cpp
@@ -48,7 +48,7 @@
 #include "scannedfoldersmodel.h"
 #include "qbtsession.h"
 #include "iconprovider.h"
-#include "dnsupdater.h"
+#include "core/net/dnsupdater.h"
 
 #ifndef QT_NO_OPENSSL
 #include <QSslKey>
@@ -1239,7 +1239,7 @@ void options_imp::on_btnWebUiKey_clicked() {
 }
 
 void options_imp::on_registerDNSBtn_clicked() {
-  QDesktopServices::openUrl(DNSUpdater::getRegistrationUrl(comboDNSService->currentIndex()));
+  QDesktopServices::openUrl(Net::DNSUpdater::getRegistrationUrl(comboDNSService->currentIndex()));
 }
 
 void options_imp::on_IpFilterRefreshBtn_clicked() {
diff --git a/src/gui/properties/peerlistwidget.cpp b/src/gui/properties/peerlistwidget.cpp
index 69ebfd355..ea4c787b0 100644
--- a/src/gui/properties/peerlistwidget.cpp
+++ b/src/gui/properties/peerlistwidget.cpp
@@ -31,7 +31,7 @@
 #include "peerlistwidget.h"
 #include "peerlistdelegate.h"
 #include "peerlistsortmodel.h"
-#include "reverseresolution.h"
+#include "core/net/reverseresolution.h"
 #include "preferences.h"
 #include "propertieswidget.h"
 #include "geoipmanager.h"
@@ -126,8 +126,8 @@ void PeerListWidget::updatePeerHostNameResolutionState()
 {
   if (Preferences::instance()->resolvePeerHostNames()) {
     if (!m_resolver) {
-      m_resolver = new ReverseResolution(this);
-      connect(m_resolver, SIGNAL(ip_resolved(QString,QString)), SLOT(handleResolved(QString,QString)));
+      m_resolver = new Net::ReverseResolution(this);
+      connect(m_resolver, SIGNAL(ipResolved(QString,QString)), SLOT(handleResolved(QString,QString)));
       loadPeers(m_properties->getCurrentTorrent(), true);
     }
   } else {
diff --git a/src/gui/properties/peerlistwidget.h b/src/gui/properties/peerlistwidget.h
index 0771555c1..fa0652563 100644
--- a/src/gui/properties/peerlistwidget.h
+++ b/src/gui/properties/peerlistwidget.h
@@ -37,9 +37,13 @@
 #include <QSet>
 #include <libtorrent/version.hpp>
 
+namespace Net
+{
+    class ReverseResolution;
+}
+
 class PeerListDelegate;
 class PeerListSortModel;
-class ReverseResolution;
 class PropertiesWidget;
 class QTorrentHandle;
 
@@ -103,7 +107,7 @@ private:
   QHash<QString, QStandardItem*> m_peerItems;
   QHash<QString, boost::asio::ip::tcp::endpoint> m_peerEndpoints;
   QSet<QString> m_missingFlags;
-  QPointer<ReverseResolution> m_resolver;
+  QPointer<Net::ReverseResolution> m_resolver;
   PropertiesWidget *m_properties;
   bool m_displayFlags;
 };
diff --git a/src/webui/webui.cpp b/src/webui/webui.cpp
index 6cafe0b4b..723675ab2 100644
--- a/src/webui/webui.cpp
+++ b/src/webui/webui.cpp
@@ -29,7 +29,7 @@
 #include "webui.h"
 #include "http/server.h"
 #include "webapplication.h"
-#include "dnsupdater.h"
+#include "core/net/dnsupdater.h"
 #include "preferences.h"
 #include "logger.h"
 
@@ -82,7 +82,7 @@ void WebUI::init()
         // DynDNS
         if (pref->isDynDNSEnabled()) {
             if (!dynDNSUpdater_)
-                dynDNSUpdater_ = new DNSUpdater(this);
+                dynDNSUpdater_ = new Net::DNSUpdater(this);
             else
                 dynDNSUpdater_->updateCredentials();
         }
diff --git a/src/webui/webui.h b/src/webui/webui.h
index 2abc6b924..9e7801af0 100644
--- a/src/webui/webui.h
+++ b/src/webui/webui.h
@@ -32,8 +32,16 @@
 #include <QObject>
 #include <QPointer>
 
-namespace Http { class Server; }
-class DNSUpdater;
+namespace Http
+{
+    class Server;
+}
+
+namespace Net
+{
+    class DNSUpdater;
+}
+
 class AbstractWebApplication;
 
 class WebUI : public QObject
@@ -48,7 +56,7 @@ private slots:
 
 private:
     QPointer<Http::Server> httpServer_;
-    QPointer<DNSUpdater> dynDNSUpdater_;
+    QPointer<Net::DNSUpdater> dynDNSUpdater_;
     QPointer<AbstractWebApplication> webapp_;
 };