How to Edit Your iPhone or iPad Email Signature

Personalize your emails with a unique signoff

Woman using a laptop next to a flower and drink

Raw Pixel / Pexels

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 aren't 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 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 rich text like bold, italic, and underline, you're limited to only those formatting options. However, with that being said, there is a trick you can use to make your iPhone or iPad use rich formatting, even with images.

How to Make a Basic iOS Email Signature

Here's how to set up a basic 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

    If you don't see that option, then you're not using the most recent version of iOS, and you should instead select Mail, Contacts, Calendars.

  3. Tap Signature at the bottom of the screen in the COMPOSING section.

    Signature area in Mail settings in Settings app on iPad

    Each email address that you use with your iPhone appears on the Signature screen. Depending on which email accounts you're using, you might see one for iCloud, Gmail, Yahoo, Outlook, and any other compatible email service you use. Each account has its own signature section.

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

    If you have more than one email address set up in Mail and you want to use the same email signature for all addresses tied to the Mail app, tap All Accounts at the top of the screen. Or, choose Per Account to specify a different email signature for each of your accounts.

  5. To apply formatting, double-tap a portion of the signature and use the handles to select the portion of the signature that you want to format.

    Formatting options after highlighting the word
  6. 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 menu, and it might be called BIU.

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

    To apply a different formatting style to some other part of the signature, tap outside the text and repeat the process.

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

  9. The changes have now been saved and you can exit the Settings app.

Adding Images and Other Formatting to a Signature

By default, 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 will be stripped out.

However, there is a trick you can utilize to make sure these formatting details, including images, aren't stripped from the signature when you paste it.

  1. From a computer, log in to the email account you want to use the signature from, and create the email signature exactly how you want it to look on your iOS device.

    Gmail signature settings
  2. Compose a new message so that the signature is used, and then save the email as a draft and open it from your iPhone or iPad.

  3. Tap-and-hold an empty space in the message and then choose either Select or Select All, and make any necessary changes to what's highlighted.

  4. Select Copy.

    Email content selection on an iPad email
  5. Select Cancel on the draft message and then open the email signature settings (repeat steps 1-4 from the first set of instructions above).

  6. Tap-and-hold in the signature box and select Paste. The signature should look similar to, but not exactly like the one you created.

    Copy and Paste option on an iPad email signature
  7. Shake your device and choose Undo on the prompt about reverting the attribute changes.

    Undo Change Attribute on an iPad signature
  8. The signature will return to the way it was when you copied it. Tap the button on the top left corner of the screen to save the signature and return to your email.

    iPad signature with image and rich text formatting
  9. You can now send emails from your iPad or iPhone with a truly customized signature.

Tips for Composing an Email Signature

Although the default 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're required to include one.
  • Test your formatted signature with as many email clients as you can to avoid unpleasant surprises.