Hi I want the full source code of intranet mail server in php code

Intranet Mailing System
Abstract
This system facilitates mailing among users of an Intranet. Now-a-days organizations are growing fast
and are increasing in size also. So these organizations are divided into departments. In the fast growing world
the information is needed as fast as possible. This can be accomplished by passing the information quickly.
Quick passing of mails is not possible in manual systems. This is because the information is passed through
persons of one department to another department. This leads to the inconsistency and delay in delivering
information. So we need a system which is both quick and accurate. This can be achieved by developing a
web-based Intranet Mailing System.
EXISTING SYSTEM
Present System is manually providing services to employees of departments of an Organization.
Employees have to go departments to know some particular information. Sometimes information is passed by
manually between departments. This manual system will take time to pass the information and sometimes it
causes loss of information also. There by causing loss of employee time also. Thus the present system stated
is time taking, insecure and costly.
PROPOSED SYSTEM
As organization grows in size in terms of departments and functionalities, it requires a quick and efficient
system to achieve instant communication b/w employees of same department or b/w departments. The
proposed system “Intranet Mailing System” serves organization’s needs in a consistent and transparent
manner. It should cater the needs of information sharing. It allows the users to exchange their views thru
mails and send electronic files thru attachments. It should have all traditional things such as sent items, inbox,
drafts etc. The users are allows to send mails to multiple users using to, cc and bcc too. Thus the system caters
spontaneous needs of the organization.
SCOPE OF THE SYSTEM
The proposed system scope is limited to Intranet only. It can be enhanced to be a global communication
medium for multinational companies. We can also implement internationalization (i18n) to support user
interface in various/local languages.
MODULE DESCRIPTION
The system “Intranet Mailing System” consists of 4 modules.
1. User Profile Management
2. Mailing
3. Contacts
4. Attachments
User Profile Management
This module facilitates new user registration, sign in of existing user, password recovery and user profile
management.
Mailing
This module facilitates conventional mail options like Inbox, Compose, Send Messages, Draft etc. Compose
option allows us to compose new mails that can be sent to one or more users of the organization. Inbox option
shows all messages received. This option allows viewing and deleting such messages. Send Messages option
allows us to view and delete messages that have been sent. The Draft option allows us to view messages
saved incompletely. These messages can be completed and sent at a later stage.
Contacts
This module allows us to keep track of our friends’ details. It allows us to add and delete contacts.
Attachments
It is an important feature of this system. With this feature, this system not only allows sending and receiving
messages. It supports us to attach files along with mail messages. Thus people of various departments of an
organization can share/exchange files effectively.
FEATURES TO BE IMPLEMENTED
 Session management
 Connection pooling
 Normalized database
 Prevention of duplication login
 Design patterns
 Three-tier architecture
 Maintainability
 Easy deployment with Ant script
 Exception handling
 Client-side validations
TECHNOLOGIES TO BE USED
 Web Presentation: HTML, CSS
 Client – side Scripting: Javascript
 Programming Language: Java
 Web based Technologies: JNDI, Servlets, JSP
 Database Connectivity API: JDBC
 Build Tool: ANT
 Debug Tool: Log 4J
 Backend Database: Oracle/SQL Server/MY SQL/MS Access
 Operating System: Windows XP/2000/2003, LINUX, Solaris
 J2EE Web/Application Server: Tomcat/Weblogic/Websphere/JBoss/Glash Fish
 IDEs: Eclipse with My Eclipse plugins/Net Beans/RAD
 Browser: IE/Mozilla
HARDWARE REQUIREMENTS
 Pentium processor -------- 233 MHZ or above
 RAM Capacity -------- 128MB
 Hard Disk -------- 20GB
 Floppy disk -------- 1.44 MB
 CD-ROM Drive -------- 32 HZ
 KEYBOARD -------- 108 Standard