Mail message format - application layer, Computer Networking

Assignment Help:

Mail Message  Format

When an e mail  is sent from one person  to another  a header containing peripheral information precedes  the body  of the message itself. This contained  information is contained in a series of header lines. The header liens and  the body of the message are separated by a blank line. Each header line contains readable ext consisting of a keyword followed  by  a colon  followed by value. some  of the  keyword  are required and others  are optional. Every header  must have  a from header line and  a to header line  a header may include a subject header line as  well as other  optional header liens  a message header looks like this.

The to field  gives the  address  of the primary recipient. Having multiple recipients is also  allowed. The  cc field gives  the addresses of any secondary recipients. In  terms  of  delivery  there is  o distinction  between  the primary and secondary recipients. The  terms cc ( carbon copy0 is a bit dated  since computers do not use cardoon paper but it is well established. The  Bcc( Billed carbon copy) field is like the cc field except that this  line  is deleted from all the copies  sent to the primary and secondary recipients. This feature  allows people  to send copies to third parties without the primary and  secondary recipients knowing this. The next two  field from and sender tell who wrote and sent  the message  respectively. A line containing  received is added by each message transfer agent along  the way. The  lien contains the agents identify the date and  data and time the message was received and other  information that can be used for finding  bugs in the routing  systems. The return path field is added  by the final message  transfer agent and was intended to tell how to get back  to  the sender.

 


Related Discussions:- Mail message format - application layer

What are the two broad class classifications, What are the two broad class ...

What are the two broad class classifications under which Networks can be divided? All computer networks fit in one of the two dimensions namely: a)      Transmission Technol

High availability - application layer, High Availability Oracle web  c...

High Availability Oracle web  cache supports  content  aware  load  balancing  and fail  over  detection. The  features ensure that cache messes are directed to the most  avai

Source to destination data transfer - datagram approach, Source to Destinat...

Source to Destination Data Transfer - Datagram approach - Each packet is treated independently. - Every pkt will take its own path to reach the destination. - There i

What is network virtual terminal, What is NVT (Network Virtual Terminal) ...

What is NVT (Network Virtual Terminal) It is a set of rules explaining a very simple virtual terminal interaction. The NVT is used in the begin of a Telnet session.

What is the networking control unit, The Network Control Unit (NCU) is a fi...

The Network Control Unit (NCU) is a field panel housing electronic modules, terminal blocks, and signal conditioners (pneumatic, linevoltageand electronic) all inside a one enclosu

How many types of twisted pair cable are there, How many types of twisted p...

How many types of twisted pair cable are there We can find two types of twisted pair cables, namely: Unshielded Twisted Pair Cable (UTP) and Shielded Twisted Pair Cable (STP).

List of many potential users of the intranet, List of many potential users ...

List of many potential users of the Intranet List of many potential users of the Intranet, both commonly used and not so commonly used. Company Documents o   Manu

Database servers connected as a cluster to the main server, Database server...

Database servers connected as a cluster to the main server There could be three database servers connected as a cluster to the main server to provide better connectivity and se

Elaborate the term - database connectivity, Elaborate the term - Database C...

Elaborate the term - Database Connectivity Basic connectivity A number of database management systems are available today such as the Oracle, Sybase, Ingres, etc. Most

Define retransmission, Define Retransmission? Retransmission is a proce...

Define Retransmission? Retransmission is a process in which the receiver detects the occurrence of an error and asks the sender to resend the message. Resending is repeated unt

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd