Internet

How to delete or deactivate your Instagram account

Maybe it's the pandemic doomscrolling, the unsettling revelations about how toxic Instagram is for teenage girls, or you are just craving more time for IRL moments with the people you love and less time oversharing your life ...

Consumer & Gadgets

Facebook, Ray-Ban launch smart glasses—who will wear them?

Seven years after the ill-fated Google Glass, and five years after Snap rolled out Spectacles, another tech giant is trying its hand at internet-connected smart glasses, hoping that this time around things might be different ...

Software

Apple previews new software for iPhone, other gadgets

Apple kicked off its second annual all-virtual developer conference with a keynote that outlined new updates to its software for iPhones and other devices. The presentation highlighted more privacy options for paid iCloud ...

Security

Russian hackers of SolarWinds back on the attack

The state-backed Russian group behind a massive hacking campaign revealed last year has re-emerged with a series of attacks on government agencies, think tanks, consultants and other organizations, according to officials ...

Security

As COVID cases rose, so did hospital hacks in France

At 2:00 a.m. on a day in early February, the deputy director of the main hospital in the southwestern French town of Dax took an urgent call from a normally unflappable colleague in the IT department.

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E-mail

Electronic mail, often abbreviated as email or e-mail, is a method of exchanging digital messages, designed primarily for human use. E-mail systems are based on a store-and-forward model in which e-mail computer server systems accept, forward, deliver and store messages on behalf of users, who only need to connect to the e-mail infrastructure, typically an e-mail server, with a network-enabled device (e.g., a personal computer) for the duration of message submission or retrieval. Rarely is e-mail transmitted directly from one user's device to another's.

An electronic mail message consists of two components, the message header, and the message body, which is the email's content. The message header contains control information, including, minimally, an originator's email address and one or more recipient addresses. Usually additional information is added, such as a subject header field.

Originally a text-only communications medium, email is extended to carry multi-media content attachments, which were standardized in with RFC 2045 through RFC 2049, collectively called, Multipurpose Internet Mail Extensions (MIME).

The foundation for today's global Internet e-mail service was created in the early ARPANET and standards for encoding of messages were proposed as early as, for example, in 1973 (RFC 561). An e-mail sent in the early 1970s looked very similar to one sent on the Internet today. Conversion from the ARPANET to the Internet in the early 1980s produced the core of the current service.

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.

This text uses material from Wikipedia, licensed under CC BY-SA