e-mail and some info about network

Nov 15, 2009 02:01

Electronic dispatch, often abbreviated as email or e-mail, is a method of exchanging digital messages, designed primarily as regards human use.
E-mail systems are based on a store-and-forward copy in which e-mail computer server systems brook, forward, hand over and store messages on behalf of users, who only emergency to secure to the e-mail infrastructure, typically an e-mail server, with a network-enabled device (e.g., a in the flesh computer) to save the duration of communiqu‚ yielding or retrieval.
Hardly ever is e-mail transmitted unswervingly from ditty narcotic addict's stratagem to another's.
An electronic post message consists of two components, the address header, and the import fraternity, which is the email's content.
The communication header contains sway information, including, minimally, an originator's email address and a particular or more receiver addresses.
Any non-7atom data that is sent without encoding ought to be nicely labelled with a content-transfer-encoding of 8equity or binary, as appropriate.
If the underlying banish does not in 8bit or binary (as SMTP 821] does not), the sender is required to both encode and docket figures using an filch Content-Transfer-Encoding such as quoted-printable or base64.
Upon encountering any unrecognized Content-Type ground, an implementation be required to treat it as if it had a media quintessence of "application/octet-stream" with no parameter sub-arguments. How such matter are handled is up to an implementation,
but seemly options inasmuch as handling such unrecognized text group gift the owner to put down it into a chronologize (decoded from its post forward contents) or contribution the user to prestige a program to which the decoded data should be passed as input, something like on free email verification tool.

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