ఈ-మెయిల్: కూర్పుల మధ్య తేడాలు

ఎలక్ట్రానిక్ ఉత్తరము లో రెండు భాగాలు ఉంటాయి, హెడర్, మరియు బాడీ. బాడీ అనగా ఉత్తరము లో మనము పంపించే సారాంశము. హెడర్ లో ఉత్తరము పంపించిన వారి ఈ-మెయిల్ అడ్రస్, ఒకటి లేదా అంతకన్నా ఎక్కువగా ఉత్తరము అందుకొంటున్న వారి ఈ-మెయిలు అడ్రస్ ఉంటాయి. అలానే, ఉత్తర సారాంశమును తెలిపే సబ్జెక్టు కూడా ఉంటుంది.

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Network-based email was initially exchanged on the ARPANET in extensions to the [[File Transfer Protocol]] (FTP), but is today carried by the [[Simple Mail Transfer Protocol]] (SMTP), first published as [[Internet Standard]] 10 (RFC 821) in 1982. In the process of transporting email messages between systems, SMTP communicates delivery parameters using a message ''envelope'' separately from the message (headers and body) itself.

 

== Spelling ==

 

 

[[Donald Knuth]] considers the spelling "e-mail" to be archaic and notes that it is more often spelled "email" in the UK. In some other European languages (French, German, Dutch, Romanian), "email" (ignoring diacritics) is the word for "enamel".<ref>http://www-cs-faculty.stanford.edu/~knuth/email.html - this page is undated but has been in the [[Internet Archive]] since 1997 (with a time stamp of 1996), and may be as old as 1991 according to [http://www.webmasterworld.com/content_copywriting/3107680.htm a blog post]</ref>

The [[ARPANET]] [[computer network]] made a large contribution to the development of e-mail. There is one report that indicates experimental inter-system e-mail transfers began shortly after its creation in 1969.<ref>[http://www.multicians.org/thvv/mail-history.html The History of Electronic Mail ]</ref> [[Ray Tomlinson]] initiated the use of the "[[At sign|@]]" sign to separate the names of the user and their machine in 1971.<ref>[http://openmap.bbn.com/~tomlinso/ray/firstemailframe.html The First Email ]</ref> The [[ARPANET]] significantly increased the popularity of e-mail, and it became the [[Killer application|killer app]] of the ARPANET.

 

 

An example of an Internet email address that routed mail to a user at a UUCP host:

 

== పనిచేయు విధానం ==

<ref>{{cite video | title = How E-mail Works | medium = internet video | publisher = howstuffworks.com | year = 2008 | url = http://www.webcastr.com/videos/informational/how-email-works.html}}</ref>

<span style="float:right">[[దస్త్రం:email.svg|400px|How e-mail works]]</span>

 

== మెస్సేజ్ ఫార్మాట్ ==

</ref>).

 

Internet e-mail messages consist of two major sections:

* Header — Structured into [[Field (computer science)|fields]] such as summary, sender, receiver, and other information about the e-mail.

 

The header is separated from the body by a blank line.

* To: The e-mail address(es), and optionally name(s) of the message's recipient(s). Indicates primary recipients (multiple allowed), for secondary recipients see Cc: and Bcc: below.

* Subject: A brief summary of the contents of the message.

* Message-ID: Also an automatically generated field; used to prevent multiple delivery and for reference in In-Reply-To: (see below).

 

[[దస్త్రం:Mozilla thunderbird empty screenshot.png|thumb|right|300px|The interface of an e-mail client, [[Mozilla Thunderbird|Thunderbird]].]]

 

 

Mail can be stored on the [[client (computing)|client]], on the [[Server (computing)|server]] side, or in both places. Standard formats for mailboxes include [[Maildir]] and [[mbox]]. Several prominent e-mail clients use their own proprietary format and require conversion software to transfer e-mail between them.

[[Flaming (Internet)|Flaming]] occurs when a person sends a message with angry or antagonistic content. Flaming is assumed to be more common today because of the ease and impersonality of e-mail communications: confrontations in person or via telephone require direct interaction, where social norms encourage civility, whereas typing a message to another person is an indirect interaction, so civility may be forgotten.{{Fact|date=June 2009}} Flaming is generally looked down upon by Internet communities as it is considered rude and non-productive.

 

 

=== వ్యాపారంలో ===

</ref>

 

 

The combination of spam and worm programs results in users receiving a constant drizzle of junk e-mail, which reduces the usefulness of e-mail as a practical tool.

A number of [[anti-spam techniques (e-mail)|anti-spam techniques]] mitigate the impact of spam. In the [[United States]], [[Congress of the United States|U.S. Congress]] has also passed a law, the [[Can Spam Act of 2003]], attempting to regulate such e-mail. Australia also has very strict spam laws restricting the sending of spam from an Australian ISP,<ref>{{citeweb|title=Spam Bill 2003|url=http://www.aph.gov.au/library/pubs/bd/2003-04/04bd045.pdf|format=PDF}}</ref> but its impact has been minimal since most spam comes from regimes that seem reluctant to regulate the sending of spam.

 

 

=== ఈ-మెయిల్ బాంబింగ్ ===

 

=== గోప్యతా సమస్యలు ===

 

కొన్ని భద్రతాపరమైన జాగ్రత్తలు తీసుకోనట్లైతే ఈ-మెయిల్ గోప్యత విషయంలో రాజీ పడవలసి వస్తుంది, ఎందువలనగా:

 

=== పంపిన ఉత్తరం చేరిందో లేదో చూడటం ===

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== అమెరికా ప్రభుత్వం ==

 

Starting in 1977, the [[US Postal Service]] (USPS) recognized that electronic mail and electronic transactions posed a significant threat to First Class mail volumes and revenue. Therefore, the USPS initiated an experimental e-mail service known as E-COM. Electronic messages were transmitted to a post office, printed out, and delivered as hard copy. To take advantage of the service, an individual had to transmit at least 200 messages. The delivery time of the messages was the same as First Class mail and cost 26 cents. Both the [[Postal Regulatory Commission]] and the [[Federal Communications Commission]] opposed E-COM. The FCC concluded that E-COM constituted common carriage under its jurisdiction and the USPS would have to file a [[tariff]].<ref>In re Request for declaratory ruling and investigation by Graphnet Systems, Inc., concerning the proposed E-COM service, FCC Docket No. 79-6 (September 4, 1979)</ref> Three years after initiating the service, USPS canceled E-COM and attempted to sell it off.<ref>[http://www.usps.com/history/history/his1.htm History of the United States Postal Service, USPS]</ref><ref>Hardy, Ian R; The Evolution of ARPANET Email; 1996-05-13; History Thesis; University of California at Berkeley</ref><ref>James Bovard, The Law Dinosaur: The US Postal Service, CATO Policy Analysis (February 1985) </ref><ref>[http://www.cs.ucsb.edu/~almeroth/classes/F04.176A/homework1_good_papers/jay-akkad.html Jay Akkad, The History of Email]</ref><ref>[http://www.cybertelecom.org/notes/email.htm Cybertelecom : Email]</ref><ref>[http://www.gao.gov/archive/2000/gg00188.pdf US Postal Service: Postal Activities and Laws Related to Electronic Commerce, GAO-00-188 ]</ref><ref>[http://govinfo.library.unt.edu/ota/Ota_4/DATA/1982/8214.PDF Implications of Electronic Mail and Message Systems for the U.S. Postal Service , Office of Technology Assessment, Congress of the United States, August 1982]</ref>

The [[జాతీయ సైన్స్ ఫౌండేషన్]] took over operations of the ARPANET and Internet from the Department of Defense, and initiated [[NSFNet]], a new [[backbone]] for the network. A part of the NSFNet AUP forbade commercial traffic.<ref>[http://www.cybertelecom.org/notes/internet_history80s.htm Cybertelecom : Internet History]</ref> In 1988, [[Vint Cerf]] arranged for an interconnection of [[MCI Mail]] with NSFNET on an experimental basis. The following year Compuserve e-mail interconnected with NSFNET. Within a few years the commercial traffic restriction was removed from NSFNETs AUP, and NSFNET was privatized.

 

 

== ఇవీ చూడండి ==

* [[HTML ఈ-మెయిల్]]

* [[Internet fax]]

* [[Privacy-enhanced Electronic Mail]]

* [[Push ఈ-మెయిల్]]

* [[Google Wave]]

 

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* [[Anti-spam techniques (ఈ-మెయిల్)]]