Speed Performance
The Outlook app takes a long time to work each time when changing between apps. This is the case even when the app is already open. The screen is blank for ten seconds or maybe longer before it loads. Compared to accessing the Exchange server through the native iOS Mail app, which my company disabled in the past year, performance has been slower and sluggish.

751 comments
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Alex commented
Hanging on update of large inbox
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Sunny commented
Subject.
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Anonymous commented
Faster push time to mobile device its takes in excess of 10 minutes from notification to actually being able to see the email
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Onur commented
With the latest updates this once speedy app really became very sluggish. Each time you start the app, it takes a long time to load and also when you are switching apps again there is a long delay as if you never had the app open. Very strange behaviour.
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Feras commented
Also when I open an email and then cLose the app. The notification remains. And when I Re-open the App it’s like I never opened the email. And I have to re-open it again. This is baad.
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Mark commented
Clicking through emails has long lag and typing a new email can have a few second delay to catch up. Any email that has an internet component in the body takes extra long to load.
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tkadjei@ecobank.com commented
Search is quite slow. In fact, typing keywords causes the app to be unresponsive on iPhone X running the latest iOS
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Anonymous commented
About half the time I launch the app it shows the splash screen for 5-7 seconds. It doesn't seem like it's using the time to sync messages, because it still has to sync after the 5-7 second delay. Why is it so slow to load?
Frankly, its unbearably slow in today's age of modern smartphones. Makes me not want to use the app, but I don't have a choice since my company disabled email in the iOS standard Mail app.
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ulrika.petersson@inter.ikea.com commented
Z
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Anonymous commented
Search function is slow and results are poor.
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fashi0n_diva_1989@hotmail.com commented
Gc
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dueckert@live.com commented
Why is my email not current. It is more then 10 days slow??? It won’t update
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Anonymous commented
Lock screen shows a notification of a new mail, takes 1-2 minutes to arrive in the inbox, rubbish
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john@ajpg.net commented
The new spell check is unbearably problematic and slows you down.
Please give us the ability to see the replacement words immediately.
Thank you. -
tkhammar@hotmail.com commented
Why is it so hard for Microsoft to make a world class, fast email app ?? I’m confused why so hard
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koos.woltjes@komama.nl commented
The app is slow, adding text is even slower I honestly am thinking of changing to another mailapp
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hares@icslv.com commented
Slowwwwwww as molasses and thats still too fast!!
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Ian Thomas commented
Takes for ever you wake up your computer and it takes for ever searches are poor and slow hard to find old emails
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Rondey Organ commented
Slow to open. Slow to load emails
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Mohamad Yunus Bin Mohamed Nasir commented
Slow, unstable, sometimes have an issue on searching with prompt no searching info, email delayed