Where to find your signature settings in Outlook

Your email signature lives in Outlook's settings, not in individual emails. The exact path depends on which version of Outlook you use — the web version (Outlook.com or Outlook on the web), the desktop application for Windows or Mac, or Outlook on your phone.

In Outlook on the web, click the gear icon in the top right corner, then select "View all Outlook settings." Go to "Mail" and then "Compose and reply." You'll see a text box labeled "Email signature" where you can add or change your signature.

In the Outlook desktop application for Windows, open Outlook and go to File > Options > Mail > Signatures. In the Mac version, go to Outlook > Preferences > Signatures. Both desktop versions show you a list of your existing signatures and let you create new ones or edit the ones you have.

Key Takeaways

  • Outlook stores signatures in settings, not in individual emails, so changes you make apply to all future messages automatically.
  • Web-based Outlook, Windows Outlook, and Mac Outlook each have different paths to the signature settings, but all three let you create multiple signatures for different purposes.
  • You can set a default signature that appears on all new emails and a separate one for replies and forwards.
  • Signatures can include text, links, images, and formatting, though images may not display for all recipients depending on their email settings.

Creating a new signature from scratch

When you open the signature settings, you'll see a button to create a new signature. Click it and give your signature a name — something like "Work" or "Professional" helps if you plan to use multiple signatures. The name is only for you to see in settings; it won't appear in your emails.

Type or paste your signature text into the box. This can be your name, job title, phone number, company name, website, or any combination. You can format the text using the toolbar: make it bold or italic, change the font size or color, add links, or insert an image. Keep in mind that some recipients use email clients that strip out formatting, so a plain-text version is safest if your signature needs to work everywhere.

Once you've written your signature, save it. Then you'll need to set it as your default — most versions of Outlook let you choose which signature appears on new emails and which appears on replies and forwards. You can use the same signature for both, or different ones.

Editing or deleting an existing signature

If you already have a signature and want to change it, go back to the signature settings and click on the signature name. Edit the text, formatting, or images as needed, then save. Any emails you send after that will use the updated version.

To delete a signature, select it in the list and click the delete button. If that signature was set as your default, Outlook will ask you to choose a new default before it removes the old one. Deleting a signature doesn't affect emails you've already sent — it only stops it from appearing on new messages going forward.

Adding images or links to your signature

Most versions of Outlook let you insert an image into your signature. In web Outlook, use the image icon in the compose toolbar. In desktop Outlook, go to Insert > Pictures. The image will be embedded in your signature and appear in every email you send.

Be cautious with image file size — large images can make your emails slow to send or receive, and some recipients' email systems may block images by default. A small company logo or headshot works better than a full-size photo. You can also add hyperlinks by highlighting text and using the link button in the formatting toolbar.

Using different signatures for different accounts or purposes

If you have multiple email accounts in Outlook, you can create separate signatures for each one. In web Outlook, the signature settings apply to whichever account you're currently signed into. In desktop Outlook, you can create multiple signatures and then assign each one to a specific account or use it manually when you need it.

Some people create a formal signature for work emails and a casual one for personal messages. You can switch between them manually each time you compose an email, or set one as the default and change it when needed. Desktop Outlook gives you the most control over this — you can set different default signatures for new messages versus replies, and different ones per account.

Troubleshooting signature problems

If your signature isn't appearing on emails you send, first check that you've set it as your default. In web Outlook, go back to settings and confirm the signature is selected in the "Email signature" field. In desktop Outlook, open a new email and look at the bottom — if the signature box is empty, you haven't set a default yet.

If your signature appears on new emails but not on replies or forwards, you may have set different defaults for each. Go back to signature settings and check which signature is assigned to "Replies and forwards." Some versions of Outlook let you choose whether to include the signature on replies at all — if that's turned off, you'll need to turn it back on.

If formatting or images aren't showing up the way you expect, try sending a test email to yourself. Some email clients display formatting differently, and recipients using older versions of Outlook or other email programs may see a simpler version of your signature. If that's a problem, simplify the formatting or remove images.

Frequently Asked Questions

Can I have different signatures for different folders or labels?

No — Outlook applies your default signature to all outgoing emails from that account. You can create multiple signatures and switch between them manually when composing, but you can't automate which signature appears based on which folder you're in. Some third-party tools claim to do this, but they require additional setup outside Outlook.

Will my signature appear the same way for everyone who receives my email?

Not always. Email clients display formatting, fonts, and images differently. A recipient using Gmail might see your signature slightly differently than someone using Outlook or Apple Mail. Plain text and simple formatting are most reliable. If you use images or complex layouts, test by sending emails to a few different accounts and checking how they look.

What happens to my signature if I change my password?

Your signature is stored separately from your password, so changing your password won't affect it. Your signature will continue to appear on emails normally. If you're locked out of your account or reset it, you may need to re-enter your signature settings, but the signature itself isn't deleted.

Can I use HTML code to create a custom signature?

In web Outlook, the compose box doesn't give you direct access to HTML. In desktop Outlook, you can paste HTML code into the signature box, but Outlook may strip out some tags or reformat it. If you need full control over HTML, you may need to use a third-party signature tool or create the signature in a different application and paste it as formatted text.

How do I remove my signature from a single email?

When you compose an email, your default signature appears automatically. To remove it from one email, select and delete the signature text before sending. This doesn't change your default settings — the signature will still appear on your next email. There's no built-in toggle to skip the signature on just one message.