Troubleshoot Outlook mobile issues

Delete phone partnerships

If you lost your phone or are trying to reset your sync partnerships, you can remove it from your account. This does not wipe your device.

Learn how to delete or remove phone partnerships using Outlook on the web: Fix email sync issues or remove a device from your Outlook on the web mailbox.

I can't install the Outlook app

In order for you to install the Outlook mobile app you need:

• A mobile device that meets the minimum requirements for the app.

• Enough storage space on your device for the size of the app.

• A Wi-Fi or data connection that will allow you to download apps.

Outlook app crashing

If the Outlook mobile app crashes when you open it, clear the browser's cache on your device. Then remove the app and re-install it.

I can't find a feature that I need in Outlook

If you have a feature you'd like to request, please send us your feedback to help us prioritize new features in future updates. See How do I give feedback on Microsoft Office for more information.

Outlook.com or Microsoft 365 work or school account account not syncing anymore

If your Outlook.com or Microsoft 365 work or school account account was syncing with your mobile device before and now it's not, see Fix Outlook.com email sync issues. You can learn how to remove your sync partnership and then you'll have to re-add your account.

You can also check the server status of Outlook.com for outages here. If your email is working on the computer and there is no outage, the issue might be with your email app.

Can't sync calendar and contacts after set up

If you set up your email as an IMAP or POP account, your calendars and contacts won't sync. You'll have to add them as an Exchange ActiveSync account. Also make sure that your email app has the correct permissions to access your calendar and contacts.

See Can't sync calendar and contacts with my phone or tablet if you are having sync issues when setting up your email account for the first time

If your email account is working fine on a computer, the issue may be with your email app and you'll have to contact their support. For example, if you're having trouble adding an Outlook.com email account to the iOS Mail app, contact Apple Support. We recommend downloading and installing the Outlook mobile app for easy calendar and email management.