Where to find your signature settings in Outlook

Your email signature lives in Outlook's settings, not in the message itself. The path depends on which version you use. In Outlook on the web (the browser version), click the gear icon in the top right, then select View all Outlook settings. Go to Mail, then Compose and reply. In Outlook desktop (Windows or Mac), go to File, then Options (Windows) or Preferences (Mac), then Mail, then Signatures.

Once you're in the signatures section, you'll see a blank text box where you can type or paste your signature. Outlook lets you create multiple signatures and choose which one appears by default on new messages and replies.

Key Takeaways

  • Outlook stores signatures in settings, not in individual messages — change it once and it appears on all future emails.
  • The web version uses the gear icon and settings menu; the desktop version uses File > Options or Preferences.
  • You can create separate signatures for new messages and replies, or use the same one for both.
  • Signatures can include text, links, and basic formatting like bold or italics, but not images or complex layouts in all versions.

Creating a new signature from scratch

Click the New button in the signatures section and give it a name — something like "Work" or "Professional" so you can tell them apart later. Type your signature directly into the text box. A basic signature might be your name, job title, phone number, and company name on separate lines.

You can make text bold or italic using the formatting buttons above the text box. If you want to add a link (like to your website or LinkedIn), highlight the text you want to link, click the link icon, and paste the web address. Keep signatures short — most people scan them quickly, and a wall of text gets ignored.

Using your signature on outgoing messages

After you create a signature, you need to tell Outlook when to use it. In the same signatures settings, look for the dropdown menus labeled New messages and Replies and forwards. Select your signature name from each dropdown. You can use the same signature for both, or pick different ones if you want a shorter version for replies.

Once you set this, Outlook will automatically add your signature to every new message and reply you send. You can still edit or remove it on individual messages if needed — just click in the signature area and delete or change the text before sending.

Editing or deleting an existing signature

To change a signature you've already created, go back to the signatures section, click the signature name in the list on the left, and edit the text in the box on the right. Your changes take effect when ready on all new messages going forward. Old emails you've already sent keep their original signature — changing the signature doesn't rewrite the past.

To delete a signature, select it from the list and click the Delete button. If that signature was set as your default for new messages or replies, Outlook will ask you to pick a different one before it removes it. You can always create a new signature later if you change your mind.

Signature differences between Outlook versions

Outlook on the web (the browser version) supports text, links, and basic formatting. It does not support images or HTML code directly — if you try to paste a signature with an image, the image won't appear. The desktop version of Outlook (Windows and Mac) also has the same limitation in most cases, though some older versions allow HTML signatures if you know how to write the code.

If you use Outlook on multiple devices, your signature syncs automatically on the web version across all browsers. On the desktop version, signatures are stored locally on that computer, so you may need to create the same signature on each device separately. Check your version number in settings if you're unsure which one you're using.

Common signature mistakes to avoid

The most common mistake is creating a signature that's too long. Anything over five or six lines gets cut off on mobile phones or buried in the email thread. Avoid using all caps, excessive punctuation, or special characters — they can look unprofessional and sometimes break in certain email clients.

Another mistake is forgetting to set a default signature after creating one. If you create a signature but don't select it in the New messages dropdown, it won't appear on your emails automatically. You'll have to add it manually to each message, which defeats the purpose. Always check that your signature is selected as the default before you send your first message.

Frequently Asked Questions

Can I have different signatures for different email accounts?

Yes. If you have multiple email accounts set up in Outlook, you can create separate signatures for each one. In the signatures settings, look for a dropdown that says Email account at the top. Select the account you want to create a signature for, then create or edit the signature. Repeat for each account.

Why isn't my signature appearing on my emails?

Check that you've selected your signature in the New messages dropdown in the signatures settings. Also check that you're not replying to an email — if you set a different signature for replies, it might not match the one you expect. If you're using Outlook on the web, try signing out and back in to refresh the settings.

Can I add a logo or image to my signature?

Outlook on the web and most desktop versions don't support images in signatures directly. If you need a logo, you can create the signature in Word, save it as HTML, and then import it into Outlook — but this requires technical steps and doesn't work on all versions. For most users, a text-only signature is simpler and more reliable.

What happens to my signature if I change my password?

Your signature is separate from your password and won't be affected. Changing your Outlook password won't delete or modify your signature. Your signature stays the same until you manually edit or delete it.

Can I use the same signature in Outlook and Gmail?

No — each email client stores signatures separately. If you use both Outlook and Gmail, you'll need to create the same signature in both places. They don't sync between services, so you have to set them up independently.