How to Set Up Your iOS Email Signature on iPhone and iPad

Personalize your emails with a unique signoff

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An email signature shows up at the bottom of your outgoing emails. It might include anything from just your name and title or a funny quote to helpful information such as your website URL or phone number. Signatures are not required and can be deleted, but they often provide useful information for the recipient.

You set up an email signature on your iPhone or iPad in the Settings app. The default signature line for the Mail app in iPhone is "Sent from my iPhone," but you can change your signature to anything you want (or use none at all). You can even generate an email signature that differs for each of your connected email accounts.

The Mail app signature settings on the iPhone and iPad allow only basic email signatures. Although the app supports bold, italic, and underline, you are limited to only those formatting options. If you want to add a live link, there's a trick for that.

How to Make a Basic iOS Email Signature

Here's how to set up an email signature that automatically shows up at the end of each of your outgoing emails on your iPhone or iPad.

These screenshots are from an iPad, but your iPhone will work the same way.

  1. Open the Settings app on the iPhone or iPad Home screen.

    Callout of Settings app on an iPad screen
  2. Scroll down and tap Mail.

    Callout of Mail icon in Settings app on iPad
  3. Tap Signature at the bottom of the screen in the Composing section. Each email address that you use with your iPhone appears on the Signature screen. You have one for iCloud, of course, but you may also have one for Gmail, Yahoo, Outlook, and any other compatible email service you use. Each account has its own signature section.

    Signature area in Mail settings in Settings app on iPad
  4. If you have more than one email address set up in Mail, tap All Accounts at the top of the screen if you want to use the same email signature for all addresses tied to the Mail app. Tap Per Account to specify a different email signature for each of the accounts.

  5. Type the desired email signature in the space provided, or remove all the text to delete the email signature.

  6. To apply formatting, press and hold part of the signature text until a magnifying glass appears. Remove your finger and use the handles that appear on the screen to select the portion of the signature that you want to format. You can also double-tap the word you want to highlight for the same effect.

    Formatting options after highlighting the word
  7. A menu appears above the selected text. Look for the CBIU tab for bold, italic, and underline formatting, and tap it. You might have to tap the right-pointing arrow on the menu bar to see the CBIU entry.

    Bold formatting the word
  8. Tap one of the selections in the menu bar to apply formatting to the selected text.

  9. Tap outside the text and repeat the process to format another part of the signature differently.

  10. Tap the arrow at the top left side of the Signature screen to save the changes and return to the Mail screen.

  11. Exit the Settings app.

Limitations of Mail Formatting

Unfortunately, you can't change the color, font, or font size of a part of your email signature. The iOS Mail app signature settings offer only rudimentary rich-text features. Even if you copy and paste a formatted feature from elsewhere into the Mail signature settings, most of the rich-text formatting is stripped out.

The exception is a live link. If you type a URL in your email signature in the Mail app, it does not appear to be a live, clickable link in the Settings field, but when you send your email, it is indeed a live link. Send yourself an email to check this out and confirm that it works.  

Tips for Composing an Email Signature

Although your signature-formatting options are limited on an iOS device, you can still generate an effective signature by following a few guidelines.

  • Keep it short. Limit your signature to no more than five lines of text. If you think you can't make your information fit, use pipes (|) or colons (:) to separate text sections.

  • A business signature should include your name, a title (optional), your company name with a link to the company's website, and a business phone number. If available, include a link to a recent article or post about you or your company.

  • You don't need to include your email address in your email signature because it's at the top of the email. 

  • For a personal email account, consider including links to your social profiles, such as on Twitter, Facebook, and LinkedIn.

  • Short, inspiring quotes often appear at the end of email signatures. These are usually more appropriate for personal than business signatures.

  • Leave out any legal disclaimers unless you are required to include one in your business.

  • Test your formatted signature with as many email clients as you can to avoid unpleasant surprises.