Email is the electronic transmission of messages over networks, functioning similarly to traditional mail but utilizing digital formats. The e-mail system consists of client software, message stores, message transport agents, management systems, and gateways for message delivery. Each component plays a crucial role in sending and receiving electronic messages efficiently.

1. PRESENTED BY:
DANIYAL KHAN
ADEEL AWAN
SYED NASIR ALI

2. WHAT IS AN E-MAIL?

3. Email is a short form of
Electronic mail.
It is defined as
Transmission of
messages over
communication
networks.

4. WHAT IS AN E-MAIL
SYSTEM?

5. It is similar to the traditional
mail system with post boxes,
post offices, envelopes and
addresses. The difference is
that here messages are sent
electronically to other
computer users via Internet.

6. One can send
computer
documents, graphics,
software or anything
else that can be
turned into a digital
form attached to an
email message.

7. Message needs to be
converted into a digital form
and forwarded to a computer
that acts as a mail server or
post office.

8. Basic Parts of the E-mail
System
 Clients software
 Message store
 Message transport
 Management System
 Gateways

9. Client Software
Client software is a user interface that
allows users to read and send messages.
It shows the list of all of the messages
in mailbox by displaying the message
headers that shows who sent the mail,
the subject of the mail and may also
show the time and date of the message
and the message size.

11. Message Store
A Message Store can exist in more than
one place at the same time. Its best to
keep all email in one main Message
Store on the server.

12. Message Transport
Message
Transport Agents
(MTAs) are
software systems
that keep moving
messages along
to the intended
destination.

13. Management System
Management software is used to create
user mailboxes, to maintain address
lists and routing information, and to
monitor message traffic.

14. Gateways
Gateways are needed only if a message
must be translated in order to travel
from a private email system to another,
or to the public Internet mail system.