You can enable auto-sync from the settings menu of your email app. The app should then automatically look for new emails and let you know when a new message arrives. You can check if this is why your emails aren't syncing by enabling the auto-sync option in your email app. However, if you have changed any settings pertaining to email sync, that can affect how apps sync your emails. Most email clients have automatic sync enabled so you can receive emails without any delays. Luckily, we'll show you ways to fix when your email won't sync on your Android device.ġ. Issues like this can make you miss out on important emails, which can be a costly issue if you don't resolve it quickly. If this is unusual, you might have an issue: your Android phone is likely not syncing your emails, and so you aren't actually receiving any messages on your device. Your phone's been sitting idle for hours and you haven't heard a single tone for incoming email.