Outlook not syncing on Android? Here’s what to do

Microsofts Android suite gained a lot of popularity as the Redmond giant invest more in the development of apps like Microsoft Outlook. And the app is usually good, for some probably better than Google’s Gmail. However, some users are bothered by quite a debilitating error, as Outlook for Android is not syncing.

Learn how to fix this with the instructions below.

Table of contents:

  1. Check the connection
  2. Disable Battery optimization for Outlook
  3. Remove and add the account again
  4. Reinstall Outlook
  5. Download an older APK version of Outlook

Outlook can’t sync emails on Android

If Outlook can’t sync email on Android, you can usually fix this by:

  • Disabling Battery optimization for Outlook in Settings > Apps > Outlook > Battery.
  • Ensuring that there are no network issues.
  • Remove and add the account again.
  • Reinstall the app or use an older version by sideloading an APK.

Solution 1 – Check the connection

The first thing to do is to ensure that your device is connected to a stable Wi-Fi. Inspect the connection and see whether any other app suffers from network issues. If the problem is isolated to Outlook, then you can move to another step.

On the other hand, if you have connectivity issues in general, try these steps:

  • Reboot your phone/tablet and your wireless router.
  • Enable Airplane mode for a couple of minutes. Disable it, connect to a network, and try syncing emails again.
  • Reset Network Settings.
  • Check out our articles about Wi-Fi and data issues on Android for more solutions.

Solution 2 – Disable Battery Optimization for Outlook

The Outlook should sync the emails from the server in the background. Sadly, many Android skins tend to kill off apps that work in the background in order to save battery life. One some Android skins (e.g. MIUI and EMUI) you can whitelist Outlook in the Security app/System Manager but the best thing to do is to disable Battery optimization.

Follow these steps to disable Battery optimization for Outlook and allow it to sync in the background:

  1. Open Settings.
  2. Tap Apps.
  3. Choose Outlook.
  4. Select Battery and disable Battery optimization for Outlook.outlook not syncing

Solution 3 – Remove and add the account again

Moving forward. Of course, in case you still weren’t able to resolve the sync issue, you can try and remove the account. Along with that, you can navigate to Outlook in a web browser and remove the Android device from the Sync list.

To do so, open Outlook, select Settings from the left pane, open your account and you should find Delete account at the bottom.outlook not syncing

Solution 4 – Reinstall Outlook

If the previous steps weren’t of any help, let’s reinstall the app and give it another go. Usually, Microsoft tends to its Play Store apps but there might be a bug in the current version. If that’s indeed the case, the reinstallation should fix it for good.

Follow these steps to reinstall Outlook on Android:

  1. Open the Play Store.
  2. Search for Outlook and expand the Microsoft Outlook: Organize Your Email & Calendar app.
  3. Tap Uninstall and restart your device.
  4. Now, open any browser, navigate here, and sign in with the affected Outlook/Hotmail account.
  5. Under the Mobile device in the left pane, locate your device, highlight it and click on the minus sign (-) to delete it.
  6. After that, just install Outlook again, sign in with your credentials, and wait for it to sync.

Solution 5 – Download an older APK version of Outlook

Finally, if you are still stuck with Outlook not syncing on your Android, you can roll back the app by installing an APK from APK Mirror (or any other APK aggregate of your choice). There’s something flawed with the current version so, by installing an older version, Outlook should be able to sync emails successfully.

Here’s how to download and install an Outlook APK on your phone or tablet:

  1. Uninstall Microsoft Outlook as explained above.
  2. Navigate to APK Mirror, here, or any other APK hub online.
  3. Download an older APK version but not older than two months.
  4. Grant permission to install apps from untrusted sources.
  5. Install the APK and give it a go.

And on that note, we can wrap it up. Thank you for reading and be kind to share the results of troubleshooting with us in the comments section below.

Editor’s note: This article was originally published in April 2021. We made sure to revamp it for freshness and accuracy.

Subscribe to our Newsletter

If you just learned something new about your phone, and want more of that, subscribe to our newsletter.

We guarantee 100% privacy. Your name/email address will never be shared.

Notify of
Most Voted
Newest Oldest
Inline Feedbacks
View all comments
Kevin Still
Kevin Still
August 5, 2020 2:28 am

I was able to fix my issue but checking the “All Mail” – “Show in IMAP” under labels.

October 6, 2021 4:15 pm
Reply to  Kevin Still

where do you find this in the app?? I can’t see an option for this…

July 12, 2020 12:58 pm

Method 2 is no longer applicable. Although the account settings screen says “Sync issues? Try resetting you account”, there is no Reset button anymore, just the Delete Account button.

Lorna Goode
Lorna Goode
August 14, 2022 4:25 pm

At the end of July 2022 my Samsung S10 stopped sending or receiving emails and, whilst it says it is still syncing it is showing no emails at all. I have tried all of the above and have had no luck.

Can someone help me please?

March 2, 2021 8:22 pm

I downloaded “Email – Lightning Fast & Secure Email” app by Edison Software… set it up manually and it worked.

October 23, 2020 7:10 am

Now I have to do this everyday 🙁 Is there any proper solution?

October 29, 2020 2:19 am
Reply to  S.Tapas

Same problem here. I am returning to GMail app, no choice!

October 29, 2020 2:32 am
Reply to  S.Tapas

I think I’ve found the problem. Try this : Go to Battery optimization, and DISABLE the optimization for all “Outlook” and “Authenticator” (if you have it).
As soon as I did this, all emails synced again without doind any reset or reboot.

October 29, 2020 10:46 am
Reply to  Christophe

Thanks Chris, will try that.

Good day.

February 23, 2021 10:00 pm
Reply to  Christophe

Worked for me. I just disabled Battery Optimization for the Authenticator and Outlook is working now.
Thank you!

August 4, 2021 10:49 am
Reply to  Christophe

solved it for me. outlook on android 10

A. Hastings
A. Hastings
November 12, 2021 11:45 am
Reply to  Christophe

THANK YOU, Christophe! I have been looking everywhere for a solution to this, and found many that made no difference at all. Eventually I came across your ‘battery optimisation’, and solution worked brilliantly!