Outlook Not Syncing: How to Fix It
New emails only appear when you manually refresh, or your phone shows old mail while your computer shows new mail.
Try these in order
- Check your internet connection. Open a browser and load a site like microsoft.com to confirm you're actually online (Microsoft Support).
- Force a manual sync. In new Outlook, hit the Sync button on the View tab and watch the status message at the bottom of the message list (Microsoft Support).
- Check whether your mailbox or cloud storage is full. When Microsoft cloud storage fills up, mail stops arriving entirely and incoming messages bounce back to senders (Microsoft Support).
- Re-enter your password if you changed it. If you updated the password with your email provider, select the account icon, choose Continue, and sign in again (Microsoft Support).
- Reset the account in the Outlook mobile app. Go to Settings, tap the account that isn't syncing, and tap Reset Account (Microsoft Support).
- Remove the device partnership. In Outlook on the web go to Settings > General > Mobile devices, delete your device, save, power the phone off and on, then sync again (Microsoft Support).
- Delete and re-add the account. As a last resort, remove the email account from Outlook and set it up fresh (Microsoft Support).
Still stuck? For a work or school account, ask your Microsoft 365 administrator; for an Outlook.com, Hotmail, or Live address, contact Microsoft Support (Microsoft Support).
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