diff -uNr james-mailbox/spring/src/main/resources/META-INF/spring/mailbox-locker.xml james-mailbox-new/spring/src/main/resources/META-INF/spring/mailbox-locker.xml
--- james-mailbox/spring/src/main/resources/META-INF/spring/mailbox-locker.xml	2015-03-09 10:46:43.288296642 +0100
+++ james-mailbox-new/spring/src/main/resources/META-INF/spring/mailbox-locker.xml	2015-03-09 11:39:26.599982658 +0100
@@ -25,4 +25,6 @@
 
     <bean id="jvm-locker" class="org.apache.james.mailbox.store.JVMMailboxPathLocker"/>
 
+    <bean id="no-locker" class="org.apache.james.mailbox.store.NoMailboxPathLocker"/>
+
 </beans>
diff -uNr james-mailbox/store/src/main/java/org/apache/james/mailbox/store/NoMailboxPathLocker.java james-mailbox-new/store/src/main/java/org/apache/james/mailbox/store/NoMailboxPathLocker.java
--- james-mailbox/store/src/main/java/org/apache/james/mailbox/store/NoMailboxPathLocker.java	1970-01-01 01:00:00.000000000 +0100
+++ james-mailbox-new/store/src/main/java/org/apache/james/mailbox/store/NoMailboxPathLocker.java	2015-03-09 11:37:53.511521057 +0100
@@ -0,0 +1,44 @@
+/****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one   *
+ * or more contributor license agreements.  See the NOTICE file *
+ * distributed with this work for additional information        *
+ * regarding copyright ownership.  The ASF licenses this file   *
+ * to you under the Apache License, Version 2.0 (the            *
+ * "License"); you may not use this file except in compliance   *
+ * with the License.  You may obtain a copy of the License at   *
+ *                                                              *
+ *   http://www.apache.org/licenses/LICENSE-2.0                 *
+ *                                                              *
+ * Unless required by applicable law or agreed to in writing,   *
+ * software distributed under the License is distributed on an  *
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
+ * KIND, either express or implied.  See the License for the    *
+ * specific language governing permissions and limitations      *
+ * under the License.                                           *
+ ****************************************************************/
+
+package org.apache.james.mailbox.store;
+
+import org.apache.james.mailbox.MailboxSession;
+import org.apache.james.mailbox.exception.MailboxException;
+import org.apache.james.mailbox.model.MailboxPath;
+
+/**
+ * Some distributed mailboxes do not require any locking ( eg : Cassandra )
+ *
+ * This PathLocker avoid useless locking when these mailboxes are used
+ */
+public class NoMailboxPathLocker extends AbstractMailboxPathLocker {
+
+    @Override
+    protected void lock(MailboxSession session, MailboxPath path, boolean writeLock) throws MailboxException {
+
+    }
+
+
+    @Override
+    protected void unlock(MailboxSession session, MailboxPath path, boolean writeLock) throws MailboxException {
+
+    }
+
+}