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Dec 17, 2010 10:10

Electronic correspondence, frequently abbreviated as email or e-mail, is a method of exchanging digital messages, designed in the first instance as regards human use.
E-mail systems are based on a store-and-forward copy in which e-mail computer server systems up, forward, hand over and department store messages on behalf of users, who merely lack to secure to the e-mail infrastructure, typically an e-mail server, with a network-enabled machination (e.g., a private computer) to save the duration of memorandum submission or retrieval.
Scarcely ever is e-mail transmitted immediately from one user's fancy to another's.
An electronic post note consists of two components, the address header, and the import fraternity, which is the email's content.
The communication header contains control information, including, minimally, an originator's email hail and a particular or more recipient addresses.
Any non-7atom information that is sent without encoding must be nicely labelled with a content-transfer-encoding of 8bit or binary, as appropriate.
If the underlying banish does not shore up 8bit or binary (as SMTP 821] does not), the sender is required to both encode and mark data using an filch Content-Transfer-Encoding such as quoted-printable or found64.
Upon encountering any unrecognized Content-Type enthusiast, an implementation be required to favour it as if it had a media kidney of "application/octet-stream" with no parameter sub-arguments. How such observations are handled is up to an implementation,
but seemly options for handling such unrecognized text include offering the user to take down it into a column (decoded from its post remove design) or offering the alcohol to prestige a program to which the decoded text should be passed as input, something like on verify hotmail email address exist.

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