Whois & Analysis for mailtester.ninja

An email address identifies an email box to which messages are delivered.

While early messaging systems used a variety of formats for addressing, today, email addresses follow a set of specific rules originally standardized by the Internet Engineering Task Force (IETF) in the 1980s, and updated by.

The term email address in this article refers to just the addr-spec in Section 3.4 of RFC 5322.

The RFC defines address more broadly as either a mailbox or group.

A mailbox value can be either a name-addr, which contains a display-name and addr-spec, or the more common addr-spec alone.

The Finder is the default file manager and graphical user interface shell used on all Macintosh operating systems.

Described in its "About" window as "The Macintosh Desktop Experience", it is responsible for the launching of other applications, and for the overall user management of files, disks, and network volumes.

It was introduced with the first Macintosh computer, and also exists as part of GS/OS on the Apple IIGS.

It was rewritten completely with the release of Mac OS X in 2001.

Mail is an email client included by Apple Inc. with its operating systems macOS, iOS, iPadOS, watchOS, and visionOS.

Mail grew out of NeXTMail, which was originally developed by NeXT as part of its NeXTSTEP operating system, after Apple's acquisition of NeXT in 1997.

A ninja or shinobi was a covert agent, mercenary, or guerrilla warfare expert in feudal Japan.

The functions of a ninja included siege and infiltration, ambush, reconnaissance, espionage, deception, and later bodyguarding and their fighting skills in martial arts, including ninjutsu.

Their covert methods of waging irregular warfare were deemed dishonorable and beneath the honor of the samurai.

Though shinobi proper, as specially trained warriors, spies, and mercenaries, appeared in the 15th century during the Sengoku period, antecedents may have existed as early as the 12th century.