Editing Microsoft Outlook (section)

=== Phones and tablets ===
First released in April 2014 by the [[venture capital]]-backed [[startup company|startup]] [[Acompli]], the company was acquired by [[Microsoft]] in December 2014. On January 29, 2015, Acompli was re-branded as Outlook Mobile—sharing its name with the Microsoft Outlook desktop [[personal information manager]] and [[Outlook.com]] email service.<ref name=verge-outlookmobile>{{cite web|title=Microsoft rebrands Acompli as Outlook for iOS and Android|url=https://www.theverge.com/2015/1/29/7936081/microsoft-outlook-app-ios-android-features|website=The Verge|date=January 29, 2015|access-date=January 31, 2015|archive-date=January 16, 2021|archive-url=https://web.archive.org/web/20210116125247/https://www.theverge.com/2015/1/29/7936081/microsoft-outlook-app-ios-android-features|url-status=live}}</ref> In January 2015, [[Microsoft]] released Outlook for phones and for tablets (v1.3 build) with [[Office 365]].<ref>Compare:
{{cite web
 | url= http://blogs.microsoft.com/blog/2015/01/29/office-everywhere-great-news-office-ios-android/
 | title= Office on iOS and Android
 | work= Office Blogs
 | date= January 29, 2015
 | publisher= [[Microsoft]]
 | access-date= January 11, 2015
 | archive-date= January 29, 2015
 | archive-url= https://web.archive.org/web/20150129170220/http://blogs.microsoft.com/blog/2015/01/29/office-everywhere-great-news-office-ios-android/
 | url-status= live
 }}</ref> This was the first Outlook for these platforms with email, calendar, and contacts.

On February 4, 2015, Microsoft acquired [[Sunrise Calendar]];<ref name=PCWorld>{{cite web|last=Miners|first=Zach|title=Microsoft reportedly buying slick calendar app Sunrise to bolster productivity push|url=http://www.pcworld.com/article/2880272/microsoft-said-to-acquire-calendar-app-sunrise-for-north-of-100-million.html|newspaper=[[PC World]]|date=February 4, 2015|access-date=April 13, 2020|archive-date=September 30, 2020|archive-url=https://web.archive.org/web/20200930200912/https://www.pcworld.com/article/2880272/microsoft-said-to-acquire-calendar-app-sunrise-for-north-of-100-million.html|url-status=live}}</ref> on September 13, 2016, Sunrise ceased to operate, and an update was released to Outlook Mobile that contained enhancements to its calendar functions.<ref>{{cite web|last=Warren|first=Tom|title=Microsoft isn't killing the Sunrise calendar app just yet|url=https://www.theverge.com/2016/9/1/12746910/microsoft-sunrise-shut-down-delayed|website=[[The Verge]]|date=September 1, 2016|access-date=April 13, 2020|archive-date=November 8, 2020|archive-url=https://web.archive.org/web/20201108123022/http://www.theverge.com/2016/9/1/12746910/microsoft-sunrise-shut-down-delayed|url-status=live}}</ref><ref name="verge-sunrisedelay">{{cite web|title=Microsoft Outlook's mobile app just added Sunrise's best features|url=https://www.theverge.com/2016/9/13/12895358/microsoft-outlook-sunrise-app-merger|website=The Verge|date=September 13, 2016|publisher=Vox Media|access-date=September 15, 2016|archive-date=November 8, 2020|archive-url=https://web.archive.org/web/20201108095451/https://www.theverge.com/2016/9/13/12895358/microsoft-outlook-sunrise-app-merger|url-status=live}}</ref>

Similar to its desktop counterpart, Outlook mobile offers an aggregation of attachments and files stored on [[cloud storage]] platforms; a "focused inbox" highlights messages from frequent contacts, and calendar events, files, and locations can be embedded in messages without switching apps. The app supports a number of email platforms and services, including [[Outlook.com]], [[Microsoft Exchange Server|Microsoft Exchange]] and [[Google Workspace]] (formerly G Suite) among others.

Outlook mobile is designed to consolidate functionality that would normally be found in separate apps on mobile devices, similar to [[personal information manager]]s on [[personal computer]]s. It is designed around four "hubs" for different tasks, including "Mail", "Calendar," "Files" and "People". The "People" hub lists frequently and recently used contacts and aggregates recent communications with them, and the "Files" hub aggregates recent attachments from messages, and can also integrate with other online storage services such as [[Dropbox]], [[Google Drive]], and [[OneDrive]].<ref name=verge-acompliandroid>{{cite web|title=Acompli brings its Exchange-friendly email app to Android|url=https://www.theverge.com/2014/9/4/6099341/acompli-brings-its-exchange-friendly-email-app-to-android|website=The Verge|date=September 4, 2014|publisher=Vox Media|access-date=January 31, 2015|archive-date=November 11, 2020|archive-url=https://web.archive.org/web/20201111175719/http://www.theverge.com/2014/9/4/6099341/acompli-brings-its-exchange-friendly-email-app-to-android|url-status=live}}</ref><ref>{{cite web|url=http://recode.net/2014/02/20/acompli-from-zimbra-and-vmware-vets-tees-up-a-swing-at-mobile-email/|title=Acompli, From Zimbra and VMware Vets, Tees Up a Swing at Mobile Email|last=Gannes|first=Liz|date=February 20, 2014|work=[[Re/code]]|access-date=September 29, 2014|archive-date=March 14, 2016|archive-url=https://web.archive.org/web/20160314082445/https://recode.net/2014/02/20/acompli-from-zimbra-and-vmware-vets-tees-up-a-swing-at-mobile-email/|url-status=live}}</ref><ref name="engadget-acompli"/><ref>{{cite web|url=http://mashable.com/2014/04/24/acompli-email-app/|title=Acompli Launches App to Simplify Mobile Email|last=Bell|first=Karissa|work=[[Mashable]]|date=April 24, 2014|access-date=January 30, 2015|archive-date=November 12, 2020|archive-url=https://web.archive.org/web/20201112030417/https://mashable.com/2014/04/24/acompli-email-app/?europe=true|url-status=live}}</ref><ref name="wsj-acompli">{{cite web|url=https://online.wsj.com/news/articles/SB10001424052702304393704579530332026112164?KEYWORDS=Joanna+Stern&mg=reno64-wsj|title=You're Emailing Wrong: The Best Mobile Apps for Managing Your Inbox|last=Stern|first=Joanna|date=April 29, 2014|publisher=[[The Wall Street Journal]]|access-date=September 29, 2014|archive-date=October 8, 2020|archive-url=https://web.archive.org/web/20201008222519/https://www.wsj.com/articles/SB10001424052702304393704579530332026112164|url-status=live}}</ref> To facilitate indexing of content for search and other features, emails and other information are stored on external servers.<ref name=witpro-outlooksecurity>{{cite web|last1=Redmond|first1=Tony|title=Do the ex-Acompli now Outlook clients really compromise security or is everyone overreacting?|url=http://windowsitpro.com/blog/do-ex-acompli-now-outlook-clients-really-compromise-security-or-everyone-overreacting|website=Windows IT Pro|publisher=Penton|access-date=January 31, 2015|archive-date=September 1, 2016|archive-url=https://web.archive.org/web/20160901100626/http://windowsitpro.com/blog/do-ex-acompli-now-outlook-clients-really-compromise-security-or-everyone-overreacting|url-status=live}}</ref>

Outlook mobile supports a large number of different e-mail services and platforms, including [[Microsoft Exchange Server|Exchange]], [[iCloud]], [[Gmail]], [[Google Workspace]] (formerly G Suite), [[Outlook.com]], and [[Yahoo! Mail]].<ref>{{cite web|url=http://www.digitalspy.com/tech/news/a567986/best-new-mobile-apps-for-ios-android-ifttt-midrive-more.html#~oRcNVU2vVxDLXK|title=Best new mobile apps for iOS, Android: IFTTT, miDrive, more|last=Langshaw|first=Mark|date=April 30, 2014|publisher=[[Digital Spy]]|access-date=September 29, 2014|archive-date=April 13, 2020|archive-url=https://web.archive.org/web/20200413014420/https://www.digitalspy.com/tech/apps/a567986/best-new-mobile-apps-for-ios-android-ifttt-midrive-more/#~oRcNVU2vVxDLXK|url-status=live}}</ref><ref>{{cite web|url=https://www.theguardian.com/technology/2014/apr/28/best-iphone-ipad-apps-tynker-acompli|title=20 best iPhone and iPad apps this week|last=Dredge|first=Stuart|date=April 28, 2014|work=[[The Guardian]]|access-date=September 29, 2014|archive-date=July 24, 2020|archive-url=https://web.archive.org/web/20200724230302/https://www.theguardian.com/technology/2014/apr/28/best-iphone-ipad-apps-tynker-acompli|url-status=live}}</ref> The app supports multiple email accounts at once.<ref name=zdnet-iosreview>{{cite web|last1=Kendrick|first1=James|title=Acompli for iOS review: Must-have app for BYOD|url=https://www.zdnet.com/article/acompli-for-ios-review-must-have-app-for-byod/|website=ZDNet|publisher=CBS Interactive|access-date=January 31, 2015|archive-date=August 8, 2020|archive-url=https://web.archive.org/web/20200808180954/https://www.zdnet.com/article/acompli-for-ios-review-must-have-app-for-byod/|url-status=live}}</ref>

Emails are divided into two inboxes: the "Focused" inbox displays messages of high importance, and those from frequent contacts. All other messages are displayed within an "Other" section.<ref name=witpro-outlooksecurity/><ref name=cnet-betterapps>{{cite web|title=Better email apps for your iPhone|url=https://www.cnet.com/news/email-apps-for-your-iphone-ipad/|website=CNET|publisher=CBS Interactive|access-date=January 31, 2015|archive-date=October 8, 2020|archive-url=https://web.archive.org/web/20201008222519/https://www.cnet.com/news/email-apps-for-your-iphone-ipad/|url-status=live}}</ref> Files, locations, and calendar events can be embedded into email messages. Swiping gestures can be used for deleting messages.<ref name="engadget-acompli">{{cite web|url=https://www.engadget.com/2014/05/03/irl-acompli/|title=Test-driving Acompli: Could an email app be reason enough to go back to the iPhone?|last=Bowen|first=Andy|date=May 3, 2014|work=[[Engadget]]|access-date=September 28, 2014|archive-date=July 26, 2020|archive-url=https://web.archive.org/web/20200726155407/https://www.engadget.com/2014-05-03-irl-acompli.html|url-status=live}}</ref><ref name=Vogel2014>{{cite web|url=http://www.itproportal.com/2014/09/15/mobile-app-of-the-day-acompli/|title=Mobile app of the day: Acompli|last=Vogel|first=Sandra|work=ITProPortal |date=September 15, 2014|access-date=September 28, 2014|archive-date=July 26, 2020|archive-url=https://web.archive.org/web/20200726154822/https://www.itproportal.com/2014/09/15/mobile-app-of-the-day-acompli/|url-status=live}}</ref><ref>{{cite web|url=http://www.phonearena.com/news/Accompli-arrives-for-Android-intelligent-email-wrapped-in-calendar-and-cloud-storage_id60636|title=Accompli arrives for Android: intelligent email wrapped in calendar and cloud storage|last=P.|first=Daniel|date=September 12, 2014|publisher=PhoneArena|access-date=September 28, 2014|archive-date=September 27, 2020|archive-url=https://web.archive.org/web/20200927001238/https://www.phonearena.com/news/Accompli-arrives-for-Android-intelligent-email-wrapped-in-calendar-and-cloud-storage_id60636|url-status=live}}</ref><ref>{{cite web|url=https://thenextweb.com/apps/2014/04/27/perfect-ios-email-app-finally-exists-much-just-email/|title=Acompli: a Perfect iOS Email App but We Wish it Wasn't Free|last=Williams|first=Owen|date=April 27, 2014|work=The Next Web|access-date=September 29, 2014|archive-date=November 28, 2020|archive-url=https://web.archive.org/web/20201128200518/https://thenextweb.com/apps/2014/04/27/perfect-ios-email-app-finally-exists-much-just-email/|url-status=live}}</ref>

Like the desktop Outlook, Outlook mobile allows users to see appointment details, respond to Exchange meeting invites, and schedule meetings. It also incorporates the three-day view and "Interesting Calendars" features from Sunrise.<ref>{{Cite web|date=September 13, 2016|title=Introducing Outlook's new and improved calendar on iOS and Android|url=https://www.microsoft.com/en-us/microsoft-365/blog/2016/09/13/introducing-outlooks-new-and-improved-calendar-on-ios-and-android/|access-date=March 26, 2021|website=Microsoft 365 Blog|language=en-US|archive-date=April 21, 2021|archive-url=https://web.archive.org/web/20210421073412/https://www.microsoft.com/en-us/microsoft-365/blog/2016/09/13/introducing-outlooks-new-and-improved-calendar-on-ios-and-android/|url-status=live}}</ref>

Files in the Files tab are not stored offline; they require Internet access to view.

==== Security ====
{{Update section|date=October 2022|reason=Data is secured with TLS version 1.2 over HTTPS connections end-to-end, between Microsoft 365 or Office 365 and the app, as per https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/outlook-for-ios-and-android/outlook-for-ios-and-android
|inaccurate=yes}}
Outlook mobile temporarily stores and indexes user data (including email, attachments, calendar information, and contacts), along with login credentials,<ref name=oauth-office-365>{{cite web|title=New access and security controls for Outlook for iOS and Android|url=https://blogs.office.com/2015/06/10/new-access-and-security-controls-for-outlook-for-ios-and-android|website=Office Blogs|date=June 10, 2015|access-date=June 10, 2015|archive-date=July 20, 2020|archive-url=https://web.archive.org/web/20200720105033/https://www.microsoft.com/de-de/microsoft-365/blog/2015/06/10/new-access-and-security-controls-for-outlook-for-ios-and-android/|url-status=dead}}</ref> in a "secure" form on [[Microsoft Azure]] servers located in the United States.<ref name=outlook_ios>{{cite web|title=Outlook for iOS and Android|url=https://technet.microsoft.com/EN-US/library/mt465744(v=exchg.150)|website=Microsoft TechNet|access-date=January 11, 2016|archive-date=April 13, 2020|archive-url=https://web.archive.org/web/20200413014426/https://docs.microsoft.com/en-us/exchange/clients/outlook-for-ios-and-android/use-basic-auth?view=exchserver-2019|url-status=live}}</ref> On Exchange accounts, these servers identify as a single [[Exchange ActiveSync]] user in order to fetch e-mail. Additionally, the app does not support [[mobile device management]], nor allows administrators to control how third-party [[cloud storage service]]s are used with the app to interact with their users. Concerns surrounding these security issues have prompted some firms, including the [[European Parliament]], to block the app on their Exchange servers.<ref name=networkworld-outlookapp>{{cite web|title=Outlook for iOS, Android flagged for inherent security flaws|url=https://www.networkworld.com/article/935186/outlook-for-ios-android-flagged-for-inherent-security-flaws.html|website=NetworkWorld|date=February 2, 2015|access-date=February 7, 2015|archive-date=April 28, 2024|archive-url=https://web.archive.org/web/20240428135719/https://www.networkworld.com/article/935186/outlook-for-ios-android-flagged-for-inherent-security-flaws.html|url-status=live}}</ref><ref name=techtarget-outlooksecurity>{{cite web|title=Security issues lead IT to block Outlook for iOS|url=http://searchconsumerization.techtarget.com/news/2240239514/Security-issues-lead-IT-to-block-Outlook-for-iOS|website=TechTarget|access-date=February 7, 2015|archive-date=September 21, 2020|archive-url=https://web.archive.org/web/20200921082311/https://searchmobilecomputing.techtarget.com/news/2240239514/Security-issues-lead-IT-to-block-Outlook-for-iOS|url-status=dead}}</ref><ref name=itworld-eublock>{{cite web|title=EU Parliament blocks new Outlook apps over privacy concerns|url=http://www.itworld.com/article/2881635/eu-parliament-blocks-new-outlook-apps-over-privacy-concerns.html|website=IT World|date=February 9, 2015|access-date=February 10, 2015|archive-date=April 24, 2017|archive-url=https://web.archive.org/web/20170424135557/http://www.itworld.com/article/2881635/eu-parliament-blocks-new-outlook-apps-over-privacy-concerns.html|url-status=dead}}</ref> Microsoft maintains a separate, pre-existing [[Outlook Web Access]] app for Android and iOS.<ref name=itworld-eublock/>

==== Outlook Groups ====
Outlook Groups was a mobile application for [[Windows Phone]], [[Windows 10 Mobile]], [[Android (operating system)|Android]] and [[iOS]] that could be used with an Office 365 domain Microsoft Account, e.g. a work or school account. It is designed to take existing email threads and turn them into a group-style conversation. The app lets users create groups, mention their contacts, share Office documents via OneDrive and work on them together, and participate in an email conversation. The app also allows the finding and joining of other Outlook Groups. It was tested internally at Microsoft and launched September 18, 2015, for Windows Phone 8.1 and Windows 10 Mobile users.<ref>{{cite web|url=http://www.windowscentral.com/outlook-groups-app-now-available-windows-10-mobile|title=Outlook Groups app is now available for Windows 10 Mobile and Windows Phone 8.1|work=Windows Central|date=September 19, 2015|access-date=October 2, 2015|archive-date=June 29, 2016|archive-url=https://web.archive.org/web/20160629064836/http://www.windowscentral.com/outlook-groups-app-now-available-windows-10-mobile|url-status=live}}</ref>

After its initial launch on Microsoft's own platforms they launched the application for [[Android (operating system)|Android]] and [[iOS]] on September 23, 2015.<ref name=Outlook-Groups-for-Android-launch>{{cite news|last=Edmonds|first=Rich|title=Microsoft releases Outlook Groups for Android to help you engage with your team.|url=http://www.androidcentral.com/microsoft-releases-outlook-groups-android-help-you-engage-your-team|newspaper=Android Central|date=September 23, 2015|access-date=September 23, 2015|archive-url=https://web.archive.org/web/20161117104933/http://www.androidcentral.com/microsoft-releases-outlook-groups-android-help-you-engage-your-team|archive-date=November 17, 2016|url-status=dead}}</ref>

Outlook Groups was updated on September 30, 2015, that introduced a deep linking feature as well as fixing a bug that blocked the "send" button from working.{{Citation needed|date=June 2024}} In March 2016 Microsoft added the ability to attach multiple images, and the most recently used document to group messages as well as the option to delete conversations within the application programme.<ref>{{cite web|url=http://mspoweruser.com/outlook-groups-ios-updated-new-features/|title=Outlook Groups for iOS updated with new features.|work=MSPowerUser|date=March 29, 2016|first=Michael|last=Allison|access-date=May 5, 2020|archive-date=September 20, 2020|archive-url=https://web.archive.org/web/20200920121510/https://mspoweruser.com/outlook-groups-ios-updated-new-features/|url-status=live}}</ref>

Outlook Groups was retired by Microsoft on May 1, 2018.<ref>{{cite web|title=Outlook Groups app is retiring.|url=https://support.office.com/en-us/article/outlook-groups-app-is-retiring-17ef4874-8b2a-4176-8c7e-998997c68334|access-date=May 5, 2020|archive-date=August 10, 2020|archive-url=https://web.archive.org/web/20200810041258/https://support.microsoft.com/en-us/office/outlook-groups-app-is-retiring-17ef4874-8b2a-4176-8c7e-998997c68334?ui=en-us&rs=en-us&ad=us|url-status=live}}</ref> The functionality was replaced by adding the "Groups node" to the folder list within the Outlook mobile app.<ref>{{cite web |title=Use Groups in the Outlook mobile app |url=https://support.office.com/en-us/article/use-groups-in-the-outlook-mobile-app-7804076e-0acc-48f6-87a1-083b98a5ffa2 |access-date=May 5, 2020 |archive-date=November 12, 2020 |archive-url=https://web.archive.org/web/20201112003907/https://support.microsoft.com/en-us/office/use-groups-in-the-outlook-mobile-app-7804076e-0acc-48f6-87a1-083b98a5ffa2?ui=en-us&rs=en-us&ad=us |url-status=live }}</ref>