Have you ever shot off an email and awaited a reply only to realize you didn’t enter the email address correctly? As it happens, iOS has a simple solution to help prevent that experience.

There’s an easy way to create a custom filter to alert you when an incorrect address is used before sending an email on iPhone and iPad, and it’s quick to set up.

iPhone & iPad: How to make sure you don’t send email to the wrong addresses

  1. Open Settings, swipe down and tap on Mail
  2. Swipe down again and tap on Mark Addresses
  3. Enter the addresses for the most popular email services and your place of work (example: @icloud.com, @gmail.com, @yahoo.com, @9to5mac.com, etc.)
  4. Anything not entered will show up in red when composing email in the iOS Mail app

After you add some address domains, you’ll see the “On” next to the Mark Addresses feature as shown above.

Now when you go to compose an email in the iOS Mail app, any incorrectly entered addresses will show up in red instead of blue, shown below in the image on the far right.

Odds are good the red text will look so out of place, you’ll catch the mistake before sending your email.

For more help getting the most out of your Apple devices, check out our how to guide as well as the following articles:

Check out 9to5Mac on YouTube for more Apple news:

FTC: We use income earning auto affiliate links. More.

Check out 9to5Mac on YouTube for more Apple news:

You’re reading 9to5Mac — experts who break news about Apple and its surrounding ecosystem, day after day. Be sure to check out our homepage for all the latest news, and follow 9to5Mac on Twitter, Facebook, and LinkedIn to stay in the loop. Don’t know where to start? Check out our exclusive stories, reviews, how-tos, and subscribe to our YouTube channel

About the Author