diff --git a/pykolab/Makefile.am b/pykolab/Makefile.am
--- a/pykolab/Makefile.am
+++ b/pykolab/Makefile.am
@@ -12,6 +12,10 @@
 	auth/ldap/cache.py \
 	auth/ldap/syncrepl.py
 
+pykolab_auth_pleskdir = $(pythondir)/$(PACKAGE)/auth/plesk
+pykolab_auth_plesk_PYTHON = \
+	auth/plesk/__init__.py
+
 pykolab_clidir = $(pythondir)/$(PACKAGE)/cli
 pykolab_cli_PYTHON = \
 	$(wildcard cli/*.py)
diff --git a/pykolab/auth/__init__.py b/pykolab/auth/__init__.py
--- a/pykolab/auth/__init__.py
+++ b/pykolab/auth/__init__.py
@@ -151,6 +151,11 @@
             from pykolab.auth.ldap import LDAP
             self._auth = LDAP(self.domain)
 
+        elif conf.get(section, 'auth_mechanism') == 'plesk':
+            log.debug(_("Starting Plesk..."), level=8)
+            from pykolab.auth import plesk
+            self._auth = plesk.Plesk(self.domain)
+
         # elif conf.get(section, 'auth_mechanism') == 'sql':
         #     from .sql import SQL
         #     self._auth = SQL(self.domain)
diff --git a/pykolab/auth/plesk/__init__.py b/pykolab/auth/plesk/__init__.py
new file mode 100644
--- /dev/null
+++ b/pykolab/auth/plesk/__init__.py
@@ -0,0 +1,161 @@
+# Copyright 2010-2017 Kolab Systems AG (http://www.kolabsys.com)
+#
+# Jeroen van Meeuwen (Kolab Systems) <vanmeeuwen a kolabsys.com>
+# Christian Mollekopf <mollekopf@kolabsys.com>
+#
+# 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 3 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, see <http://www.gnu.org/licenses/>.
+#
+
+import datetime
+
+import sqlalchemy
+
+from sqlalchemy import Column
+from sqlalchemy import ForeignKey
+from sqlalchemy import Integer
+from sqlalchemy import String
+from sqlalchemy import Text
+
+from sqlalchemy import MetaData
+from sqlalchemy import Table
+
+from sqlalchemy import desc
+from sqlalchemy import create_engine
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import mapper
+
+try:
+    from sqlalchemy.orm import relationship
+except:
+    from sqlalchemy.orm import relation as relationship
+
+try:
+    from sqlalchemy.orm import sessionmaker
+except:
+    from sqlalchemy.orm import create_session
+
+import pykolab
+
+from pykolab import utils
+from pykolab.translate import _
+
+# pylint: disable=invalid-name
+conf = pykolab.getConf()
+log = pykolab.getLogger('pykolab.auth.plesk')
+
+metadata = MetaData()
+
+##
+## Classes
+##
+
+DeclarativeBase = declarative_base()
+
+class Object(DeclarativeBase):
+    __tablename__ = 'objects'
+
+    id = Column(Integer, primary_key=True)
+    object_type = Column(String(256), index=True, nullable=False)
+    object_name = Column(String(256), index=True, nullable=False)
+
+    params = relationship('ObjectParam')
+
+class ObjectParam(DeclarativeBase):
+    __tablename__ = 'object_params'
+
+    id = Column(Integer, primary_key=True)
+    object_id = Column(Integer, ForeignKey('objects.id', ondelete="CASCADE"), nullable=False)
+    key = Column(String(256), index=True, nullable=False)
+    value = Column(Text, nullable=False)
+
+class Plesk(pykolab.base.Base):
+    db = None
+
+    def __init__(self, domain=None):
+        self.domain = domain
+
+    def connect(self):
+        self.__init_db()
+
+    def find_recipient(self, address="*", search_attrs=None):
+        """
+            Given an address string or list of addresses, find one or more valid
+            recipients.
+        """
+
+        log.debug(_("Finding recipient with filter %r") % (address), level=8)
+
+        _objects = self.db.query(Object).filter_by(object_name=address).all()
+        return map(lambda _object: (str)(_object.id), _objects)
+
+    def get_entry_attribute(self, entry_id, attribute):
+        """
+            Get an attribute for an entry.
+
+            Return the attribute value if successful, or None if not.
+        """
+
+        entry_attrs = self.get_entry_attributes(entry_id, [attribute])
+
+        if attribute in entry_attrs:
+            return entry_attrs[attribute]
+        elif attribute.lower() in entry_attrs:
+            return entry_attrs[attribute.lower()]
+        else:
+            return None
+
+    def get_entry_attributes(self, entry, attributes):
+        print(entry, attributes)
+        _object = None
+        if isinstance(entry, dict):
+            _object = self.db.query(Object).get((int)(entry['dn']))
+        else:
+            _object = self.db.query(Object).get((int)(entry))
+
+        if _object is None:
+            return None
+
+        attrs = {'id': entry}
+
+        attrs['mail'] = _object.object_name
+
+        for param in _object.params:
+            if param.key not in attrs:
+                attrs[param.key] = []
+
+            attrs[param.key].append(param.value)
+
+        return attrs
+
+    def _disconnect(self):
+        self.db.close()
+
+    def _find_user_dn(self, recipient_address, kolabuser=False):
+        _object = self.db.query(Object).filter_by(object_name=recipient_address).first()
+
+        if _object is None:
+            return None
+
+        return (str)(_object.id)
+
+    def __init_db(self):
+        if self.db is not None:
+            return
+
+        db_uri = conf.get('plesk', 'sql_uri')
+
+        echo = conf.debuglevel > 8
+        engine = create_engine(db_uri, echo=echo)
+        Session = sessionmaker(bind=engine)
+        self.db = Session()