Where to find and edit your iPhone email signature

Your iPhone email signature lives in the Mail app settings, not in the email itself. Open Settings, scroll down and tap Mail, then scroll to the bottom of that screen and tap Signature. You will see a text box with your current signature — or an empty one if you have never set one.

The signature you create here will appear at the bottom of every email you send from the Mail app on that iPhone. If you use multiple email accounts on the same phone, you can set a different signature for each one by tapping the account name first, then editing its signature separately.

Tap in the text box, delete the old signature, type your new one, and tap Mail at the top left to save. The change takes effect when ready on your next outgoing email.

Key Takeaways

  • Your email signature is stored in Settings > Mail > Signature, not in the Mail app itself.
  • You can set a different signature for each email account on your iPhone by selecting the account name before editing.
  • Changes save automatically when you return to the Mail settings menu.
  • The signature appears on every email you send from the Mail app, but not on emails sent from other apps like Gmail or Outlook unless you edit those apps separately.
  • You can use line breaks and special characters in your signature, but keep it short — most people read email on phones.

Setting a signature for each email account separately

If you have more than one email account set up on your iPhone, the Signature menu shows you all of them. Tap the account name you want to edit, and the text box below will show that account's current signature. Edit it the same way — delete the old text, type the new signature, and tap Mail to save.

This is useful if you use one account for work and another for personal mail, or if you manage multiple business accounts. Each one can have its own closing line, title, or contact information. If you want all accounts to use the same signature, you can type it into each one individually, or leave some blank if you prefer.

What happens if you use Gmail, Outlook, or other email apps

The signature you set in iPhone Settings only affects emails sent through the built-in Mail app. If you use the Gmail app, Outlook app, or any other email client on your iPhone, those apps have their own signature settings that are separate from the Mail app.

To change your signature in Gmail, open the Gmail app, tap the menu icon (three horizontal lines), scroll down to Settings, tap your email address, then tap Signature. In Outlook, go to Settings > Mail > Signature within the Outlook app itself. Each app stores its signature independently, so you will need to update them separately if you use more than one email client.

Removing your signature entirely

To delete your signature, go to Settings > Mail > Signature, tap in the text box, select all the text (press and hold, then tap Select All), and delete it. Leave the box empty and tap Mail to save. Your emails will no longer include a signature line.

If you have multiple accounts and want to remove the signature from only one of them, select that account first, then delete its signature text. The other accounts will keep their signatures.

Common signature formats and what works well on iPhone

A straightforward signature might be just your name, or your name and job title. A more complete one could include your phone number, website, or company name. Keep in mind that most people read email on their phones, so a long signature takes up a lot of screen space and can be annoying.

You can use line breaks by pressing Enter between lines. For example:

Sarah OkaforConsumer Electronics WriterYour Online News Todaysarah@example.com

Avoid special characters, emojis, or fancy formatting — they may not display correctly on all phones or email clients. Stick to plain text, numbers, and standard punctuation. If you want to include a website or social media handle, type it as plain text (like www.example.com) rather than as a clickable link, since the signature field does not support links.

Syncing your signature across devices

If you use an iPhone and a Mac, your Mail signature does not automatically sync between them. You have to set the signature separately on each device. On a Mac, open Mail, go to Mail > Preferences, click Signatures, select your email account, and type your signature in the text box.

If you use iCloud to sync your email across devices, the email itself syncs, but the signature settings do not. This means you might have different signatures on your iPhone and Mac, which can be confusing if you send emails from both. The easiest solution is to use the same signature on both devices and update them together whenever you make a change.

Troubleshooting: signature not appearing on sent emails

If you set a signature but it does not appear on your emails, first check that you are sending from the Mail app, not another email client. Open a draft email, look at the "From:" line — if it says something other than your main email account, you may be using a different app.

If you are using the Mail app and the signature still does not show, go back to Settings > Mail > Signature and make sure the text box is not empty. Sometimes the signature setting gets cleared after a software update. Type it in again and tap Mail to save. If the problem persists, try restarting your iPhone by turning it off and back on.

Frequently Asked Questions

Can I use different signatures for different recipients?

No, the Mail app does not support conditional signatures. Every email you send will use the same signature. If you need different signatures for different people, you would have to type them manually at the end of each email, or use a third-party email app that offers that feature.

Will my signature appear on emails I forward or reply to?

Your signature appears only on new emails you compose. When you reply to or forward an email, the signature does not automatically add itself — you would have to type it manually if you want it included. This is standard behavior across most email apps.

What if I have a signature set but want to send one email without it?

Write your email as usual, and before you send it, delete the signature text from the bottom of the message. The signature will still appear on your next email. There is no built-in toggle to skip the signature on a single email.

Can I include my photo or a logo in my signature?

The Mail app signature field accepts text only, not images or attachments. If you need a photo or logo in your signature, you would have to add it manually to each email, or use a different email app that supports image signatures.

Does my signature take up space in my email storage?

No, your signature is stored in your iPhone settings, not in your email account. It does not count toward your iCloud storage or email quota, and it does not increase the size of each email you send by any meaningful amount.