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Mail.app

Mail (macOS)
Apple Mail.png
Developer(s) Apple Inc.
Stable release
10.3 / March 27, 2017; 3 months ago (2017-03-27)
Written in Objective-C
Operating system macOS
Type Email client
License Proprietary
Website www.apple.com/osx/apps/#mail
Mail (iOS)
Mail iOS.svg
Developer(s) Apple Inc.
Stable release
9.0 / September 16, 2015; 21 months ago (2015-09-16)
Written in Objective-C
Operating system iOS, watchOS
Type Email client
License Proprietary

Mail (also known as Apple Mail or Mail.app) is an email client included with the operating systems macOS, iOS and watchOS by Apple Inc. Originally developed by NeXT as NeXTMail, a part of their NeXTSTEP operating system, it eventually became Mail after apple's acquisition of NeXT.

The current version of Mail utilizes for message sending, , Exchange and for message retrieval and S/MIME for end-to-end message encryption. It is also preconfigured to work with popular email providers, such as Yahoo! Mail, AOL Mail, Gmail, Outlook and iCloud (formerly MobileMe) and it supports Exchange.iOS features a mobile version of Mail with added Exchange ActiveSync support, though it notoriously missed the functionality of attaching files to reply emails until the release of iOS 9. The iOS version of Mail is the most popular email client in the world by market share.

Mail first shipped as NeXTMail, the email application for the NeXTSTEP operating system. NeXTMail was innovative for its time, supporting rich text formatting with images and voice messaging. It also supported MIME emails, along with plain text to allow for backwards compatibility. The default message found in the inbox when the user first opened NeXTMail included a voice recording of Steve Jobs.

When Apple began to adapt NeXTSTEP to become Mac OS X, both the operating system and the application went through various stages as it was developed. In a beta version (codenamed "Rhapsody") and various other early pre-releases of Mac OS X, Mail was known as MailViewer. However, with the third developer release of Mac OS X, the application had returned to being known simply as Mail.


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