Email Architecture Video Lecture | Computer Networks - Computer Science Engineering (CSE)

hello everyone and captivity in this
video we will be learning about the
basic image architecture that is how the
emails are sent from one PC to another
and what are the basic protocol views in
the email architecture
what is the email is an image a message
sent from one device to another within
then we can swing and receive messages
with attachments such as photos and
documents we can also send message video
plays and software programs we made
yahoo mail hotmail are some of the email
service provider now let's look into
protocols being used in the email
architecture I sent is the SMTP stands
for Simple Mail Transfer Protocol it is
the standard protocol used for sending
image efficiently and reliably over the
Internet SMTP is the application level
protocol it is takes place protocol and
it is also connection oriented that is
it to handle the exchange of messages
between the main servers or PCP acting
in case the messages are not delivered
an error report is sent to the sender
which makes the SMTP a reliable protocol
the next one star anise
I am NOT stands for internet mail access
protocol there are different versions of
I am applied AMF - I am a three and a
four
I reckon on the client program to
manipulate the email message or
without downloading them on the local
computer third comes to PC having
welcome to the pop pop stands for the
post of this protocol it in generally
used to support any single client
there are several hundreds of four but
the box is the current standard for
support offline access to the messages
does refers less internet usage time now
let's see in the basic in the
architecture what happens when and we
actually click on the send button in the
email configuration window when we click
on the send button the port number 25
that is the telnet port becomes active
the connection between the default
server and the client is made when the
message is forwarded to the default
server in the client central message the
message of decision the domain of the
sent message is the domain of the sent
message is searched in the default
server if the domain is found in the
message is forwarded to the domain
storage in cases the domain is not found
then the message is forwarded to the
other server same procedure is carried
out in the Dominus form once the drama
server is found the message is stored in
the domain storage which user can access
from using his username and password
let's take an example of artisan
deposition
suppose a default server is a hot-melt
service the client is sensor message
from the yahoo.com and it is being sent
by gmail.com first when the connection
is after the connection is made the SMTP
sorry the server sends in the random
number 220 to the client when the client
says hello at the Yahoo dot com that is
the connection is finally made you mean
again to acknowledge the client for 250
hot meant of completion by the server
client then sends mail from XYZ at
yahoo.com plan onion acknowledge
acknowledge is missing 250 ok then the
receives to ABC and gmail.com that is
whom the message is being sent is
connector is communicated to the server
it is again acknowledged by two system
and occupied the server after the data
command though whatever the streams are
being followed contains the mesh actual
message sent by the client 221
hartman.com service close his command is
used to close the connection between the
client and the server this was all about
the email architectures thank you