Security

To fight email scammers, take a different view. Literally.

A team of researchers is helping law enforcement crack down on email scammers, thanks to a new visual analytics tool that dramatically speeds up forensic email investigations and highlights critical links within email data. ...

Security

How your little email server puts you in charge

Helm is a startup that wants to satisfy people who dream of having ownership of their email content. Companies hold your data on their servers; this Helm concept is the price you would pay for turning that around, where you ...

Security

Forensic finder exploring Windows calls attention to mail pile

Is Windows storing your email? Not the most comforting thought, as we recover from the Facebook user data headlines earlier this year. Nonetheless, storing of email grabbed the attention of Joel Hruska, ExtremeTech, and other ...

Security

Feds can read all your email, and you'll never know

Fear of hackers reading private emails in cloud-based systems like Microsoft Outlook, Gmail or Yahoo has recently sent regular people and public officials scrambling to delete entire accounts full of messages dating back ...

Software

Confide off-the-record app comes to Android

(Phys.org) —Ask any teenager trading selfies and very random thoughts: Some messages unlike diamonds should best be not forever. Confide, a company that makes an app with the same name, thinks that business people have ...

Internet

Google Trends info is placed on inbox duty for subscribers

(Phys.org) —Google Trends has added a new service to its mix, where users can enter email subscriptions for Google Trends, and can be sent notifications on topics of interest, showing them what is popular around the web ...

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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