Make iPhone Mail Check for New Mail Less Often or Never

Use your iPhone Settings app to customize email collection intervals

iPhone 6s and an iPhone 6s Plus.
Source: Wired.com

If you are concerned about battery usage, you may want to limit how often your iPhone checks for new email. By default, the iOS mail app is set to "Push," which means it connects to download new email as soon as any arrives on the server. 

You can prevent iPhone Mail from checking for new mail automatically, or you can schedule your email accounts to check at certain specified intervals.

Make iPhone Mail Check for New Mail Less Often (or Never)

Screenshots showing how to make the iPhone Mail app check for new messages less frequently

To set how often iPhone Mail checks your accounts for new messages:

  1. Open the Settings app.
  2. Go into the Passwords & Security section of the settings.
  3. Tap Fetch New Data from the bottom of the screen.
  4. Deselect Push at the top of the screen.
    1. Push directs the Mail app to update as often as possible, which you don't want if you are trying to reduce how often your iPhone checks for email. 
  5. Tap on each email account that's using push (they'll say Push instead of Fetch.
  6. Select Fetch from the next screen so that the fetch settings will be applied that account.
  7. Tap Fetch New Data at the top of the screen to return to the previous screen.
  8. Scroll to the bottom and pick a fetch schedule.
    1. Your options include Manually, Hourly, Every 30 Minutes, and Every 15 Minutes.
    2. If you select Manually, your iPhone will not check for email at all, you'll have to do that yourself by opening the Mail app and refreshing the screen by pulling the messages down from the top of the screen.