Mail (later Microsoft Outlook) is a discontinued
email client
An email client, email reader or, more formally, message user agent (MUA) or mail user agent is a computer program used to access and manage a user's email.
A web application which provides message management, composition, and reception functio ...
developed by
Microsoft
Microsoft Corporation is an American multinational corporation and technology company, technology conglomerate headquartered in Redmond, Washington. Founded in 1975, the company became influential in the History of personal computers#The ear ...
and included in
Windows Vista
Windows Vista is a major release of the Windows NT operating system developed by Microsoft. It was the direct successor to Windows XP, released five years earlier, which was then the longest time span between successive releases of Microsoft W ...
and later versions of Windows.
It was available as the successor to
Outlook Express, which was either included with, or released for
Internet Explorer 3.0 and later versions of
Internet Explorer
Internet Explorer (formerly Microsoft Internet Explorer and Windows Internet Explorer, commonly abbreviated as IE or MSIE) is a deprecation, retired series of graphical user interface, graphical web browsers developed by Microsoft that were u ...
. It was succeeded by
Outlook for Windows
Outlook for Windows (also referred to as ''New Outlook'') is an email client developed by Microsoft. It is a replacement of the preloaded Windows Mail, Calendar apps and the contact management People app on Windows 10 and 11, and is shipping as ...
.
Windows Vista
Windows Mail can be traced to a pre-release version of Outlook Express 7 included in early builds of Windows Vista (then known by its codename, "Longhorn"). Outlook Express 7 introduced various changes to the user interface
and relied on
WinFS for the management and storage of contacts, email, and other data.
It supported
Post Office Protocol
In computing, the Post Office Protocol (POP) is an application-layer Internet standard protocol used by e-mail clients to retrieve e-mail from a mail server. Today, POP version 3 (POP3) is the most commonly used version. Together with IMAP, ...
(POP) and
Internet Message Access Protocol (IMAP) email protocols, but no longer supported Microsoft's proprietary mail-over-
HTTP
HTTP (Hypertext Transfer Protocol) is an application layer protocol in the Internet protocol suite model for distributed, collaborative, hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web, wher ...
scheme,
an omission inherited by Windows Mail.
IPv6
Internet Protocol version 6 (IPv6) is the most recent version of the Internet Protocol (IP), the communication protocol, communications protocol that provides an identification and location system for computers on networks and routes traffic ...
is fully supported.
Windows Mail was formally announced on September 16, 2005 at
Channel 9 and positioned as the successor to Outlook Express.
Windows Mail is a fundamentally new application with significant feature additions (many which were previously exclusive to
Internet Explorer
Internet Explorer (formerly Microsoft Internet Explorer and Windows Internet Explorer, commonly abbreviated as IE or MSIE) is a deprecation, retired series of graphical user interface, graphical web browsers developed by Microsoft that were u ...
or
Microsoft Outlook
Microsoft Outlook is a personal information manager software system from Microsoft, available as a part of the Microsoft 365 software suites. Primarily popular as an email client for businesses, Outlook also includes functions such as Calendari ...
) and fundamental revisions to the storage architecture and security mechanisms. Identities in Outlook Express are replaced with
Windows user profiles. The storage of items is managed by a
Extensible Storage Engine
Extensible Storage Engine (ESE), also known as JET Blue, is an ISAM (indexed sequential access method) data storage technology from Microsoft. ESE is the core of Microsoft Exchange Server, Active Directory, and Windows Search. It is also used b ...
database
In computing, a database is an organized collection of data or a type of data store based on the use of a database management system (DBMS), the software that interacts with end users, applications, and the database itself to capture and a ...
— the same engine used by
Active Directory
Active Directory (AD) is a directory service developed by Microsoft for Windows domain networks. Windows Server operating systems include it as a set of processes and services. Originally, only centralized domain management used Active Direct ...
and
Microsoft Exchange — with messages and newsgroups stored as separate
eml
and
nws
files instead of in a single
dbx
file; the database is transactional and periodically creates backups of items to protect against data loss, which eliminates the
single point of failure
A single point of failure (SPOF) is a part of a system that would Cascading failure, stop the entire system from working if it were to fail. The term single point of failure implies that there is not a backup or redundant option that would enab ...
design of Outlook Express. Account configuration information is also no longer stored in the
Windows Registry
The Windows Registry is a hierarchical database that stores low-level settings for the Microsoft Windows operating system and for applications that opt to use the registry. The kernel, device drivers, services, Security Accounts Manager, a ...
or in a single
dbx
file—instead, Windows Mail relies on
XML
Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing data. It defines a set of rules for encoding electronic document, documents in a format that is both human-readable and Machine-r ...
files stored within a user profile alongside email, making it possible to simply copy an entire email store to another machine. Windows Mail supports the
Windows Search platform, allowing communications to be searched directly from within the Windows Shell.
Windows Mail is also intended to be a significantly more secure offering than Outlook Express by including
Bayesian spam filtering,
email attachment blocking,
junk email filtering functionality of Microsoft Exchange, the
Phishing Filter of
Internet Explorer 7
Windows Internet Explorer 7 (IE7) (codenamed Rincon) is a version of Internet Explorer, a web browser for Windows. It was released by Microsoft on October 18, 2006. It was the first major update to the browser since 2001. It does not support ve ...
, and
top-level domain
A top-level domain (TLD) is one of the domain name, domains at the highest level in the hierarchical Domain Name System of the Internet after the root domain. The top-level domain names are installed in the DNS root zone, root zone of the nam ...
blocking.
All of these features, excluding Internet Explorer Phishing Filter integration, were included in Microsoft Office Outlook 2003 as part of
Microsoft Office 2003.
Windows Mail has a documented
application programming interface
An application programming interface (API) is a connection between computers or between computer programs. It is a type of software Interface (computing), interface, offering a service to other pieces of software. A document or standard that des ...
(API) based on
Component Object Model
Component Object Model (COM) is a binary-interface technology for software components from Microsoft that enables using objects in a language-neutral way between different programming languages, programming contexts, processes and machines ...
(COM). Except for
Simple MAPI messaging functionality, the API of Outlook Express was undocumented.
Windows 7
Windows Mail is excluded from
Windows 7
Windows 7 is a major release of the Windows NT operating system developed by Microsoft. It was Software release life cycle#Release to manufacturing (RTM), released to manufacturing on July 22, 2009, and became generally available on October 22, ...
in favor of
Windows Live Mail, part of
Windows Essentials. Some files of Windows Mail still exist and there is a way to enable it.
Windows 8.x
Mail in
Windows 8
Windows 8 is a major release of the Windows NT operating system developed by Microsoft. It was Software release life cycle#Release to manufacturing (RTM), released to manufacturing on August 1, 2012, made available for download via Microsoft ...
and
8.1 is a completely new application based on the
Windows Runtime, designed in accordance with Microsoft's
Metro design language philosophy, as a
Windows Store app that runs in either full-screen or split-screen viewing modes; many of its features are hidden in
the charms or in the app bar (an initially hidden
toolbar) at the bottom of the screen that is revealed by right-clicking or by swiping upward. Mail is updated independently from the operating system and is bundled with
Calendar
A calendar is a system of organizing days. This is done by giving names to periods of time, typically days, weeks, months and years. A calendar date, date is the designation of a single and specific day within such a system. A calendar is ...
and
People
The term "the people" refers to the public or Common people, common mass of people of a polity. As such it is a concept of human rights law, international law as well as constitutional law, particularly used for claims of popular sovereignty. I ...
—it cannot be installed or uninstalled individually.
Preset server configurations for
Outlook.com,
Gmail
Gmail is the email service provided by Google. it had 1.5 billion active user (computing), users worldwide, making it the largest email service in the world. It also provides a webmail interface, accessible through a web browser, and is also ...
,
AOL Mail, and
Yahoo! Mail are available;
Exchange Server or
IMAP accounts can be configured, but Mail does not directly support
POP3
In computing, the Post Office Protocol (POP) is an application-layer Internet standard protocol used by e-mail clients to retrieve e-mail from a mail server. Today, POP version 3 (POP3) is the most commonly used version. Together with IMAP, i ...
.
Windows 10 and 11
Mail in
Windows 10
Windows 10 is a major release of Microsoft's Windows NT operating system. The successor to Windows 8.1, it was Software release cycle#Release to manufacturing (RTM), released to manufacturing on July 15, 2015, and later to retail on July 2 ...
and
11 has preset server configurations for
Outlook.com,
Office 365
Microsoft 365 (previously called Office 365) is a product family of productivity software, collaboration and cloud-based services owned by Microsoft. It encompasses online services such as Outlook.com, OneDrive, Microsoft Teams, programs form ...
,
Gmail
Gmail is the email service provided by Google. it had 1.5 billion active user (computing), users worldwide, making it the largest email service in the world. It also provides a webmail interface, accessible through a web browser, and is also ...
,
iCloud
iCloud is the personal cloud service of Apple Inc. Launched on October 12, 2011, iCloud enables users to store and Data synchronization, sync data across devices, including Apple Mail, Calendar (Apple), Apple Calendar, Photos (Apple), Apple Ph ...
, and
Yahoo! Mail.
AOL Mail, as well as other Exchange Server and IMAP accounts, can still be added, and
POP3
In computing, the Post Office Protocol (POP) is an application-layer Internet standard protocol used by e-mail clients to retrieve e-mail from a mail server. Today, POP version 3 (POP3) is the most commonly used version. Together with IMAP, i ...
support has returned.
Newsgroup/Usenet support remains absent. Mail and Calendar are still
Universal Windows apps and are in the same app container, but their third sibling, People, is moved out of this container and is a standalone app by itself.
Users can set Mail to use the system
theme or choose a custom accent color, background image, and light/dark preference. It has multi-window support and can open email messages in a new window. Emails are listed in Mail's jumplist. Mail uses a settings panel, email sorting tools in the second pane, and a toolbar in the viewing pane. Like the Vista version of Mail, this version's important controls are readily visible. Accounts can be grouped and relabeled, and custom folders can be created, edited, or deleted within the app. It is possible to use Outlook.com aliases and @mentions with Mail.
Like
Microsoft Outlook
Microsoft Outlook is a personal information manager software system from Microsoft, available as a part of the Microsoft 365 software suites. Primarily popular as an email client for businesses, Outlook also includes functions such as Calendari ...
, Mail allows users to set up Quick Actions, such as Delete, Set Flag, and Archive, to respond to messages from system notifications and swipe gestures.
In December 2019, Mail added non-removable advertisements for the
Microsoft Outlook mobile app.
In 2023, Microsoft announced that beginning in 2024, new Windows 11 devices would be shipped with the new Outlook for Windows, and that the default Windows Mail and Calendar applications would be replaced by the end of 2024.
Support for Windows Mail ended on December 31, 2024.
Heritage
As with
Microsoft Outlook
Microsoft Outlook is a personal information manager software system from Microsoft, available as a part of the Microsoft 365 software suites. Primarily popular as an email client for businesses, Outlook also includes functions such as Calendari ...
and
Outlook Express, Mail uses to invoke the search. All other Microsoft products use .
See also
*
Comparison of email clients
*
Comparison of Usenet newsreaders
This is a comparison of Usenet newsreaders.
Name field background color legend:
See also
* ''alt.*'' hierarchy
* List of newsgroups
* List of Usenet newsreaders
* News server
* Newsreader (Usenet)
* Network News Transfer Protocol
* Use ...
*
List of Microsoft Windows components
References
External links
Set up email and calendar
{{Windows Components
Usenet clients
Windows email clients
Windows Vista
Windows 8
Windows 10
Windows 11
Personal information managers
Calendaring software
Microsoft email software
2012 software
News aggregator software
Windows components
Universal Windows Platform apps