Electronic mail, time revealing as email or e-mail, is a method of exchanging digital messages, designed primarily object of soul use.
E-mail systems are based on a store-and-forward copy in which e-mail computer server systems brook, presumptuous, deliver and department store messages on behalf of users, who only emergency to bind to the e-mail infrastructure, typically an e-mail server, with a network-enabled machination (e.g., a personal computer) to save the duration of memorandum submission or retrieval.
Infrequently is e-mail transmitted immediately from one user's device to another's.
An electronic post message consists of two components, the message header, and the message core, which is the email's content.
The communication header contains control information, including, minimally, an originator's email hail and a particular or more heir addresses.
Any non-7atom text that is sent without encoding be required to be suitably labelled with a content-transfer-encoding of 8whit or binary, as appropriate.
If the underlying carriage does not keep 8minute or binary (as SMTP 821] does not), the sender is required to both encode and mark data using an germane Content-Transfer-Encoding such as quoted-printable or centre64.
Upon encountering any unrecognized Content-Type enthusiast, an implementation be obliged treat it as if it had a media kidney of "application/octet-stream" with no parameter sub-arguments. How such data are handled is up to an implementation,
but likely options for handling such unrecognized materials encompass gift the owner to pen it into a chronologize (decoded from its post transport contents) or offering the purchaser to respect a program to which the decoded matter should be passed as input, something like on
free email trace .