What "default email app" means and why it matters

When you set Gmail as your default email app, clicking an email link anywhere on your device — in a web browser, a document, a calendar invite, or another app — opens that link in Gmail instead of whatever email program was set before. On Windows, this means links open in the Gmail web version through your default browser. On Mac, iPhone, or Android, it can mean the Gmail app itself, depending on your device and what you've installed.

The default setting persists until you change it again. You don't have to repeat the process each time you use email — once it's set, it stays set across restarts and updates, unless a major system update resets defaults or you manually change it.

Key Takeaways

  • On Windows, you set Gmail as default through Settings > Apps > Default Apps, then choose Gmail for the email protocol.
  • On Mac, right-click any email link, select "Open With," choose Gmail, then click "Always Open With" to make it permanent.
  • On iPhone, go to Settings > Apps > Default Apps > Email App and select Gmail from the list.
  • On Android, long-press an email link, tap "Open With," select Gmail, then choose "Always" to set it as default.
  • If Gmail doesn't appear in your default app options, install the Gmail app first or make sure you're signed in to your Google account in your browser.

Setting Gmail as default on Windows

Open Settings and go to Apps > Default Apps. Scroll down until you find the section for protocols or email. Look for an entry labeled mailto — this is the protocol that handles email links. Click on it and select Gmail from the list of available options.

If Gmail doesn't appear in the list, make sure you're signed into your Google account in your default web browser. Gmail works through your browser on Windows, so the system needs to know you have access to it. Refresh the Settings page and try again.

Once you've selected Gmail, the change takes effect immediately. Test it by clicking an email link in a web page or document — it should now open in Gmail through your browser.

Setting Gmail as default on Mac

Right-click or Control-click any email link on a web page or in a document. A menu will appear with the option Open With. Hover over it to see a list of available email apps. Select Gmail from the list.

A dialog box will appear asking if you want to change the default app. Click Always Open With to make Gmail your permanent default. After this, all email links on your Mac will open in Gmail.

If Gmail doesn't appear in the "Open With" menu, sign into your Google account in Safari or your default browser, then try the process again. Mac pulls available email options from your installed apps and browser settings.

Setting Gmail as default on iPhone

Open the Settings app and scroll down to find Apps. Tap Default Apps, then select Email App. A list of installed email apps will appear. Tap Gmail to set it as your default.

Make sure the Gmail app is installed on your iPhone before you try this. If you see only Mail or a limited set of options, download Gmail from the App Store first, sign in with your Google account, and return to Settings to complete the change.

Once Gmail is set as default, tapping email links in Safari, Messages, Calendar, or any other app will open them in Gmail instead of Apple Mail.

Setting Gmail as default on Android

Long-press any email link in a web page, document, or app. A menu will appear with several options. Tap Open With to see a list of email apps on your device. Select Gmail from the list.

A prompt will ask if you want to use Gmail for this action. Tap Always to set it as your default for all email links going forward. If you tap Just Once, you'll have to repeat this process each time you click an email link.

If Gmail doesn't appear in the list, install it from Google Play first. Make sure you're signed into your Google account within the Gmail app, then try opening an email link again.

Changing your default email app later

You can change your default email app at any time using the same method you used to set it. On Windows, return to Settings > Apps > Default Apps and select a different email program for mailto. On Mac, right-click an email link and choose a different app with "Always Open With." On iPhone and Android, go back to your default apps settings and select a new email app.

If you want to go back to your device's built-in email app — Apple Mail on Mac or iPhone, or the default Mail app on Android — follow the same steps and select that app instead of Gmail.

Troubleshooting: Gmail doesn't appear as an option

If Gmail isn't showing up in your default app list, the most common reason is that you haven't signed into your Google account in your browser or the Gmail app isn't installed on your device. On Windows and Mac, sign into Gmail through your default web browser and refresh your Settings page. On iPhone and Android, download the Gmail app from your device's app store, sign in, and try again.

Another possibility is that your device's system settings haven't updated to recognize Gmail yet. Restart your device and check the default apps list again. If Gmail still doesn't appear after a restart, uninstall and reinstall the Gmail app (on mobile) or clear your browser cache (on Windows and Mac), then try once more.

Frequently Asked Questions

Will setting Gmail as default affect my other email accounts?

No. Setting Gmail as your default email app only determines which app opens when you click an email link. You can still use other email apps for their own accounts — they'll just stay in the background unless you open them manually. Your other email accounts remain unchanged.

Can I set Gmail as default for some links but not others?

No. Default app settings apply to all email links on your device. Once you set Gmail as default, every mailto link will open in Gmail. If you want to use a different app for a specific link, you can right-click (or long-press on mobile) and choose "Open With" to pick a different app just that once.

What happens if I uninstall Gmail after setting it as default?

If you uninstall the Gmail app on mobile, your device will revert to the previous default email app. On Windows and Mac, if you sign out of your Google account in your browser, Gmail may no longer appear as an option, and your device may switch back to a built-in email app automatically.

Does setting Gmail as default change how I receive emails?

No. Your email delivery and inbox remain exactly the same. Setting a default app only changes which program opens when you click an email link. It doesn't affect how emails arrive or where they're stored.