MADE BY:- AKSHAT GUPTA

AKSHAT KOTHARIABHIMANYU

E - MAIL

INDEX

1. What is E – Mail.2. Origin3. Message Format4. Message Body5. Message Header6. Header Fields7. Types 8. Out of Business Use9. Business Use10. Problems 11. Acknowledgement12. Bibliography

WHAT IS E - MAIL

Electronic mail, most commonly referred to as email or e-mail since ca. 1993, is a method of exchanging digital messages from an author to one or more recipients. Modern email operates across the Internet or other computer networks .  Some early email systems required that the author and the recipient both be online at the same time, in common with instant messaging. An Internet email message consists of three components, the message envelope, the message header ,and the message body. Email servers accept, forward, deliver, and store messages.

The first file sharing system was demonstrated in 1961 by the developers at MIT, where users could connect to an IBM host computer through a dial up connection, and then store and share files with other users who would connect to that same host computer. Fortunately, this incompatibility between various systems was soon to become a thing of the past, with a standardization of the email message format in the early 1980s, with a header and message body becoming the norm. From this system comes the identifiable email system that we have today, allowing swift exchanges of messages and content.

ORIGIN

MESSAGE FORMAT The Internet email message format is now defined

by RFC 5322, with multi-media content attachments being defined in RFC 2045 through RFC 2049, collectively called Multipurpose Internet Mail Extensions or MIME. Internet email messages consist of two major sections:

Header – Structured into fields such as From, To, CC, Subject, Date, and other information about the email.

Body – The basic content, as unstructured text; sometimes containing a signature block at the end. This is exactly the same as the body of a regular letter.

The header is separated from the body by a blank line. Message format consists of two things – Message Header and Header Fields.

MESSAGE BODYEmail was originally designed for 7-bit ASCII. Most email software is 8-bit clean but must assume it will communicate with 7-bit servers and mail readers. The MIME standard introduced character set specifiers and two content transfer encodings to enable transmission of non-ASCII data: quoted printable for mostly 7 bit content with a few characters outside that range and base64 for arbitrary binary data. The 8BITMIME and BINARY extensions were introduced to allow transmission of mail without the need for these encodings, but many mail transport agents still do not support them fully. In some countries, several encoding schemes coexist; as the result, by default, the message in a non-Latin alphabet language appears in non-readable form (the only exception is coincidence, when the sender and receiver use the same encoding scheme). Therefore, for international character sets, Unicode is growing in popularity.

MESSAGE HEADER

Each message has exactly one header, which is structured into fields. Each field has a name and a value. RFC 5322 specifies the precise syntax. Informally, each line of text in the header that begins with a printable character begins a separate field. The field name starts in the first character of the line and ends before the separator character ":". The separator is then followed by the field value (the "body" of the field). The value is continued onto subsequent lines if those lines have a space or tab as their first character. Field names and values are restricted to 7-bit ASCII characters. Non-ASCII values may be represented using MIME encoded words.

HEADER FIELDS

Email header fields can be multi-line, and each line should be at most 78 characters long and in no event more than 998 characters long. Header fields defined by RFC 5322 can only contain US-ASCII characters; for encoding characters in other sets, a syntax specified in RFC 2047 can be used. The message header must include at least the following fields – Message-ID, From , Date and In-Reply-To . Common header fields for email include – To Subject, Bcc, Cc, Content-Type, Precedence , References ,Reply ,Sender and Archived .

TYPESPOP3 email services

IMAP email servers

MAPI email servers

Web-based email (webmail) IMAP email servers MAPI email servers

OUT OF BUSINESS USE

Email users attach a higher level of formality, in regards to other ICTs. Users tended to associate the medium for communicating with professors, bosses, and those who they maintained professional relationships with; the degree of formality attached to email varies across users, so email is neither a more formal or less formal ICT than others.All users of email use the medium differently. With structural functionalism, people will attach various meanings to influence how they use the medium. For example, while one person might use email to communicate with their friends or fellow students on a weekly basis, and another may use it to keep in touch with family members on a daily basis. The situational setting (for example, a student will find him or herself in a different situation than a stay at home mom) in which the user finds himself or herself in shapes how and what email will be used for.

BUSINESS USEEmail was widely accepted by the business community as the first broad electronic communication medium and was the first 'e-revolution' in business communication. Email is very simple to understand and like postal mail, email solves two basic problems of communication: logistics and synchronization (see below).LAN based email is also an emerging form of usage for business. It not only allows the business user to download mail when offline, it also allows the small business user to have multiple users' email IDs with just one email connection.

PROBLEMS Information Overload

Attachment Size Limitation

Speed of Correspondence

Spamming and Computer Viruses

E-mail Spoofing

E-mail Bombing

Privacy Concerns

Tracking of Sent E-mails

I would like to express my special thanks of gratitude to my teacher Mr. Rajeev Sir as well as our principal Mrs. Indu Dubey who gave me the golden opportunity to do this wonderful project on the topic E-MAIL, which also helped me in doing a lot of Research and I came to know about many new things . I am really thankful to them. Secondly I would also like to thank my parents and my sister who helped me a lot in finishing this project within the limited time. 

ACKNOWLEDGEMENT

BIBLIOGRAPHY

Wikipedia

Britannica

www.mail.com

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