Where to find the signature settings in Outlook

Your email signature settings live in the Outlook preferences menu, not in the message composer. The exact path depends on whether you use Outlook on the web, Outlook desktop for Windows, or Outlook for Mac.

On the web, sign into your Outlook account, then click the gear icon in the top right corner. Select "View all Outlook settings," then navigate to "Mail" and then "Compose and reply." The signature box appears there.

On Windows desktop, open Outlook and go to File > Options > Mail > Signatures. On Mac, open Outlook, go to Outlook > Preferences > Signatures. Once you find the signatures panel, you can create a new signature or edit an existing one.

Key Takeaways

  • Outlook stores signature settings in preferences or settings, not in the message itself — the location varies by whether you use web, Windows, or Mac.
  • You can create multiple signatures and choose which one to use for new messages versus replies, or set a default for all outgoing mail.
  • Signatures can include text, links, images, and formatted text like bold or italics, but images must be hosted online or embedded as a file.
  • Changes to your signature take effect immediately for new messages but do not change signatures on messages you have already sent.
  • If you use multiple email accounts in Outlook, you can set a different signature for each account.

Creating a new signature from scratch

When you open the signatures panel, you will see a button to create a new signature. Click it and give your signature a name — something like "Professional" or "Work" so you can identify it later if you create more than one.

In the text box below the name, type or paste the content you want to appear at the bottom of your emails. This can be your name, title, phone number, company name, website, or any other text you want included. You can format the text using the toolbar: bold, italics, underline, font size, and text color are all available.

If you want to add a clickable link, highlight the text you want to link, then click the link icon in the toolbar. Paste the URL into the dialog box. If you want to add an image — like a company logo — use the image icon. The image must be stored online (a URL) or saved as a file on your computer.

Setting a default signature for new messages and replies

Once you have created a signature, you need to tell Outlook when to use it. In the signatures panel, you will see two dropdown menus: one for "New messages" and one for "Replies and forwards."

Click the "New messages" dropdown and select the signature you want to appear on every new email you write. Then click the "Replies and forwards" dropdown and choose whether you want the same signature, a different one, or no signature at all on messages you are responding to. Many people use a full signature on new messages but no signature on replies to keep the thread shorter.

If you have multiple email accounts set up in Outlook, you can set a different default signature for each account. The account selector appears above the dropdown menus in the signatures panel.

Adding images and formatting to your signature

Text-only signatures are the simplest, but Outlook also supports images, colors, and formatted text. You can make your name bold, change the color of your title, or add a company logo.

To add an image, click the image icon in the formatting toolbar while you are editing the signature. You can either paste a URL to an image hosted online or upload a file from your computer. Keep images small — a logo should be no more than a few hundred pixels wide so it does not make your signature take up half the screen.

Formatting works the same way as in a regular email: highlight text and click bold, italic, underline, or the font color button. You can also change the font family and size using the dropdown menus. Be cautious with unusual fonts or very small text, as they may not display correctly on all devices or email clients.

Managing multiple signatures

You can create as many signatures as you need. Some people keep one for work, one for personal emails, and one for specific projects or roles. Each signature gets its own name so you can tell them apart.

To switch between signatures on a message-by-message basis, open a new email and look for a signature option in the message composer. On the web, this usually appears as a dropdown near the bottom of the compose window. On desktop, it may appear in the Insert menu or as a button in the message toolbar. Select the signature you want for that particular email.

If you want to delete a signature you no longer use, open the signatures panel, select it from the list, and click the delete button. Deleting a signature does not affect emails you have already sent.

Troubleshooting common signature problems

If your signature is not appearing on outgoing emails, first check that you have set a default signature in the "New messages" dropdown. If you have, try closing and reopening Outlook to force it to reload your settings.

If an image in your signature is not showing up, the image URL may be broken or the file may have moved. On the web, you can right-click the image in the signature editor and select "Edit image" to check the URL. On desktop, delete the image and re-add it, making sure the file still exists or the URL is still valid.

If you are using multiple email accounts and signatures are getting mixed up, double-check that you have set the correct default signature for each account. The account selector in the signatures panel should show which account you are currently configuring.

Frequently Asked Questions

Can I use different signatures for different email accounts?

Yes. In the signatures panel, use the account selector at the top to switch between your email accounts. Set a different default signature for each one, and Outlook will automatically use the correct signature based on which account you are sending from.

Will my signature appear on emails I forward?

That depends on your settings. In the signatures panel, the "Replies and forwards" dropdown controls whether a signature appears on forwarded messages. You can choose to include it, exclude it, or use a different signature than the one on new messages.

Can I add a hyperlink to my phone number or email address?

Yes. Highlight the phone number or email address, click the link icon, and enter the URL. For a phone number, use tel: followed by the number (for example, tel:5551234567). For an email, use mailto: followed by the address.

What happens if I change my signature after I have already sent emails?

Changing your signature only affects new emails going forward. Emails you have already sent keep their original signature and will not be updated. Only messages you compose after the change will use the new signature.

Why is my image not showing up in my signature?

Images in signatures must either be hosted online (with a working URL) or embedded as a file. If the image is on your computer and not uploaded anywhere, Outlook may not be able to display it when you send the email. Try uploading the image to a cloud service and using the URL instead, or check that the file path is correct if you are using a local file.