Please Whitelist This Site?

I know everyone hates ads. But please understand that I am providing premium content for free that takes hundreds of hours of time to research and write. I don't want to go to a pay-only model like some sites, but when more and more people block ads, I end up working for free. And I have a family to support, just like you. :)

If you like The TCP/IP Guide, please consider the download version. It's priced very economically and you can read all of it in a convenient format without ads.

If you want to use this site for free, I'd be grateful if you could add the site to the whitelist for Adblock. To do so, just open the Adblock menu and select "Disable on tcpipguide.com". Or go to the Tools menu and select "Adblock Plus Preferences...". Then click "Add Filter..." at the bottom, and add this string: "@@||tcpipguide.com^$document". Then just click OK.

Thanks for your understanding!

Sincerely, Charles Kozierok
Author and Publisher, The TCP/IP Guide


NOTE: Using software to mass-download the site degrades the server and is prohibited.
If you want to read The TCP/IP Guide offline, please consider licensing it. Thank you.

The Book is Here... and Now On Sale!

Searchable, convenient, complete TCP/IP information.
The TCP/IP Guide

Custom Search







Table Of Contents  The TCP/IP Guide
 9  TCP/IP Application Layer Protocols, Services and Applications (OSI Layers 5, 6 and 7)
      9  TCP/IP Key Applications and Application Protocols
           9  TCP/IP File and Message Transfer Applications and Protocols (FTP, TFTP, Electronic Mail, USENET, HTTP/WWW, Gopher)
                9  TCP/IP Electronic Mail System: Concepts and Protocols (RFC 822, MIME, SMTP, POP3, IMAP)

Previous Topic/Section
TCP/IP Electronic Mail Message Communication Model and Device and Protocol Roles
Previous Page
Pages in Current Topic/Section
1
Next Page
TCP/IP Electronic Mail Addressing and Address Resolution
Next Topic/Section

TCP/IP Electronic Mail Addresses and Addressing

The entire concept of electronic mail is based on an analogy: the comparison of sending electronic messages to the sending of paper messages. The analogy works well because e-mail was indeed intended to be like regular mail, only with the advantages of the electronic era: speed and flexibility.

One of the many similarities between electronic and regular mail is the need for addressing. In order for a message to be delivered, it is necessary that the sender specify who the recipient is, and provide a reasonable amount of information to indicate how the recipient can be reached. In TCP/IP electronic mail, a standard electronic mail address format is used for this, and support is also provided for alternative addressing schemes that may be used in special cases.

In this section I describe how electronic mail messages are addressed. I begin with a discussion of standard electronic mail addressing in TCP/IP, and how those addresses are used to determine where e-mail should be sent. I then provide a brief discussion of historical and special e-mail addresses that you may encounter from time to time. I also discuss the use of e-mail address books (aliases) and how multiple recipients may be addressed, as well as providing an overview of electronic mailing lists, one of the earliest ways in which electronic group communication was implemented.

Quick navigation to subsections and regular topics in this section



Previous Topic/Section
TCP/IP Electronic Mail Message Communication Model and Device and Protocol Roles
Previous Page
Pages in Current Topic/Section
1
Next Page
TCP/IP Electronic Mail Addressing and Address Resolution
Next Topic/Section

If you find The TCP/IP Guide useful, please consider making a small Paypal donation to help the site, using one of the buttons below. You can also donate a custom amount using the far right button (not less than $1 please, or PayPal gets most/all of your money!) In lieu of a larger donation, you may wish to consider purchasing a download license of The TCP/IP Guide. Thanks for your support!
Donate $2
Donate $5
Donate $10
Donate $20
Donate $30
Donate: $



Home - Table Of Contents - Contact Us

The TCP/IP Guide (http://www.TCPIPGuide.com)
Version 3.0 - Version Date: September 20, 2005

© Copyright 2001-2005 Charles M. Kozierok. All Rights Reserved.
Not responsible for any loss resulting from the use of this site.