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

State briefly about fddi media, FDDI Media Class B or SAS (single-attac...

FDDI Media Class B or SAS (single-attachment stations) attach to one ring Class A or DAS (dual attachment stations) attach to both rings. SASs is attached to the primary rin

How receiver detects error, How receiver detects error The frame is 100...

How receiver detects error The frame is 10011101. The generator is 1001. The message after appending the three zeros is 10011101000. The reminder on dividing 10011101000 by 100

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

Identify the purpose of the dlci, DLCI stands for Data Link Connection Iden...

DLCI stands for Data Link Connection Identifier. It identifies the local PVC.

Explain about the integrating intranet, Explain about the Integrating Intra...

Explain about the Integrating Intranet These Intranets are designed to replace the complexity of in-house communications and processing systems that large organisations ofte

What are the two functions of the data link mac layer, a) Manages protocol ...

a) Manages protocol access to the physical network medium b) Permits multiple devices to uniquely signify one another on the data link layer

Explain basic capabilities of mobile ip, Question: a) Describe the tria...

Question: a) Describe the triangular delivery and two crossing problem that appears in Mobile IP. b) Discovery, Registration and Tunneling are three basic capabilities of Mo

netware protocol works on layer 3, Which NetWare protocol works on layer 3...

Which NetWare protocol works on layer 3--network layer-of the OSI model? Ans)IPX

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