MAIL SERVER

Industrial Training

Submited To: Ms. Prachi

Garg

Submited By: Mukesh Kumar

Roll- 1122310020

i-World solutions is a global provider of IT services. This company established in 1998 and stable in the faridabad. We deliver quality services. We have achieved the coveted ISO 9001:2000, BS7799/ISO17799 certification and SEI-CMMI-LEVEL5 accreditation. At i-World solutions, we are continuously improving the quality of our services, as well as cost, speed, and flexibility provided to our global clients. 

 Application management outsourcing  Enterprise systems implementation  Telecommunications product development  Web applications development

Our major services area:

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COMPANY PROFILE…….

USER REGISTRATION MODULE       

It is a process that links user accounts to identify the users and manages the life cycle of the user accounts and access rights. 

This module deals with new user registrations, which includes their personal details, contact details, Password details and other important details to maintain the account.

 

Login Module This module deals with authentication of users. Verifying whether they are authenticated users or not. If they are authenticated they are responded with the appropriate web pages otherwise with an error page. Login is the process by which individual access to a computer system is controlled by identification of the user. 

MAIL MAINTENANCE MODULE

This module deals with mails received & sent by us and other party.

This module concentrates on managing inbox and received mails.

Manage the sent mails

 Managing the drafts & outbox

Sending & receiving mails. 

Mail Services:Three major mail services:

▫Simple Mail Transfer Protocol SMTP

▫Post Office Protocol POP3

▫Internet Mail Access Protocol IMAP or IMAP4

What is SMTP?•Simple Mail Transfer Protocol (SMTP) is the

standard protocol for sending emails across the Internet.▫e-mail transmissions across the Internet▫The protocol used today is also known as ESMTP▫SMTP uses TCP port 25 or 2525

▫Sometimes you may have problems sending messages

ISP(Internet service provider) may have closed port 25 To determine the SMTP server for a given domain name MX (Mail eXchange) DNS record is use

Client-Server protocol▫ The client transmits an email message to the server and it act

as an SMTP client.▫ By the

. MUA (Mail User Agent), - or -

a relaying server's MTA (Mail Transfer Agents)

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POP3 (Post office protocol)POP3 uses TCP port 110 and 995 by default. Local e-mail clients use the Post Office Protocol version 3 POP3. Users allow to retrieve e-mails over TCP/IP connection from a

remote server. View the retrieve all the messages Store them on the user's PC as new messages. Delete them from the server. Disconnect.

IMAP4 (Internet mail access protocol)

Commonly known as IMAP or IMAP4 IAMP uses the TCP port 143 & 993 by

default.

• IMAP is often used in large networks▫ For example, a college campus mail system

• IMAP allows users to access new messages▫ The mail is stored on the network • With POP3, users either▫ download the e-mail to their computer▫ access it via the web. ▫ take longer than IMAP▫ must either download any new mail or

"refresh" the page to see the new messages▫ This and other fact of IMAP operation allow

multiple clients to access the same mailbox

Difference between POP3 and

IMAP4•POP3 - Post Office Protocol •IMAP - Internet Messaging Access

Protocol

• You can use only one computer to check your email

• You can use multiple computers to check your email

• Your mails are stored on the computer that you use

• Your mails are stored on the server

•Outgoing email is stored locally on your PC

• Its use on the small network

•Outgoing email is filtered to a mailbox on the server.

• Its use on the large network

Password Maintenance Module  This module deals with password management , like changing

the passwords. A system must provide a way to change the password. If a new password is passed to the system in an unencrypted form , security can be lost even before the new password can even be installed in the password database.

Password Maintenance Module

LOGOUT Module• This is one of the important module which deals with logging out

of the mail. In this module we concentrate on terminating the session after  finishing the activities with the mail accounts. 

Advantages And Disadvantages Of E-mail?

Advantages:

- Quick delivery and reply of messages

- Convenient

- Can contact a group of people at once

- No limit on how short or how long the message should be

- Can attach large documents and other files with a click of a button

- Doesn't use any paper

Disadvantages:

- Less social contact with people

- Less hand-writing practice

- Messages may be misinterpreted easily

- Can provide an easy way to spread viruses to computers

- Access to a computer and the internet is necessary, and this may not be convenient for all people

Thank You