Outlook Email Signature: How to Create and Set It Up

To create an email signature in Outlook, open the signature settings for your version, write and format your sign-off, then choose whether Outlook should add it to new messages, replies, or both. You can make a simple text signature or include details such as your job title, phone number, website, and a small logo. These steps cover classic Outlook for Windows, new Outlook, Outlook on the web, and Outlook for Mac.

An Outlook email signature is the block of text or images appended to a message. It is not the same as a cryptographic digital signature that verifies a message with a certificate. If you mean the latter, see the FAQ below.

What You’ll Need

Access to the Outlook account where you want the signature to appear.
The sign-off text you want to use, including accurate contact details and any required company wording.
Optional: a logo or other image file. Use an image you are allowed to use, and keep a text version of important information in case images are blocked.
A minute to send yourself a test message and check how the signature looks on another device.

Step-by-Step

Choose the right Outlook version. The signature controls differ between classic Outlook, new Outlook, the web app, and Mac. In Windows, classic Outlook has a File tab and a traditional ribbon. New Outlook has a modern interface and a Settings gear. Outlook on the web runs in your browser. If you are unsure which Windows version is open, check whether the File tab is present: its presence usually indicates classic Outlook. Follow the matching steps below rather than looking for a control that belongs to a different version.
Open signature settings in classic Outlook for Windows. Select File > Options > Mail > Signatures. If Outlook is open in a simplified ribbon or a different view, switch to the File tab first. In the Signatures and Stationery window, select New, enter a name for the signature, and confirm. The name is only for your reference; it can be something descriptive such as Work or Personal. A clear name is helpful if you maintain more than one signature.
Open signature settings in new Outlook or Outlook on the web. Select the Settings gear, then go to Accounts > Signatures. In some Outlook on the web layouts, the setting is listed under Mail > Compose and reply instead. If the path differs, use the Settings search field and search for signatures. Choose the account if prompted, then select the option to add or create a signature. Give it a recognizable name if the editor asks for one.
Open signature settings on a Mac. In Outlook for Mac, choose Outlook > Settings > Signatures from the menu bar. Depending on the release, the command may be labeled Preferences instead of Settings. Create a new signature with the plus or add button, then name it. If you use more than one account, check which account is selected before setting a default; a signature created for one account may not automatically be available as the default for another.
Write a useful, concise sign-off. In the editor, add your name and the details recipients need to reach you. A common layout is your full name on the first line, then role and organization, followed by phone number or website. For example, a work signature might show a name, job title, company, and one preferred contact method. Add only details that are current and appropriate for the audience. Avoid including private information, multiple unnecessary phone numbers, or a long promotional message that makes the email harder to read.
Format the text for readability. Use the editor’s formatting controls to set a modest font size and make your name or role stand out if useful. Keep colors restrained and check that the signature remains legible against a light background. Use line breaks to separate your name from contact information. Avoid relying on complex tables, unusual fonts, or decorative symbols: recipients may see a different layout in another email app, and some fonts may be substituted. If you paste text from a website or document, review its font, spacing, and color because copied formatting can come along with it.
Add an image only if it helps. If the editor provides an image or picture button, use it to insert a logo file from your computer. Resize it in the editor if needed, and avoid using a large banner that pushes the actual message far down the screen. Do not use an image as the only place where your name, phone number, or other essential information appears. Some recipients block remote images or read messages in plain text, so keep the important details as selectable text. If the image looks broken in a test message, remove it and try a smaller file or use a text-only signature.
Set the automatic signature choices. In classic Outlook, use the Choose default signature area in the Signatures and Stationery window. Select the email account, then choose a signature for New messages and, separately, for Replies/forwards. In new Outlook, the web app, and Mac, look for the signature defaults or automatic-signature options in the signature settings. Select the account and choose the signature for new messages and for replies or forwards. You can leave either choice blank if you prefer to insert the signature manually. Check both settings; selecting a default for new messages does not always set one for replies.
Save and test the result. In classic Outlook, save the signature and close the settings windows with the available confirmation buttons. In the newer editor, select its save button if one appears; some versions save changes as you edit. Start a new message and check that the signature appears once, in the right position. Then open a reply or forward draft and check that setting too. Send a test message to an address you can access, and view it on a phone or in a browser if possible. This reveals awkward wrapping, oversized images, missing line breaks, or details that are difficult to read on a small screen.

Common Mistakes

Choosing the wrong Outlook instructions: Classic Outlook’s File > Options path does not match new Outlook or the web app. Confirm which interface you are using before changing settings.
Setting only one default: New-message and reply defaults can be separate. Check both, especially if replies are missing the signature or include an unwanted one.
Assuming the signature is shared everywhere: Signatures may be stored or configured separately in desktop, web, and mobile Outlook, and settings can differ by account. Check each app and account you use.
Using an image for all contact information: Images can be blocked, resized, or omitted by some mail clients. Keep essential details in regular text.
Making the signature longer than the message: Several slogans, social icons, legal text, and multiple contact methods can overwhelm short emails. Include only what recipients need.
Forgetting to save or test: A signature may appear correctly in the editor but not in a sent message. Check an actual test email, including a reply or forward.

Tips

Use a short, consistent layout, with the most useful information near the top. A name, role or organization, and one or two contact options are usually enough.
Create separate signatures when you genuinely need different details, such as a personal account and a work account. Name them clearly so you do not select the wrong one.
Keep your signature readable on a phone. A narrow block with a few short lines generally wraps better than a wide row of links or images.
Make links easy to recognize and check that they open the intended website or email address. Do not assume that a displayed label points to the correct destination.
If you want a message without a signature, remove it from that draft before sending. A default signature is inserted automatically, but you can usually edit or delete it in the message itself without changing the saved version.
Review your signature when your role, phone number, company branding, or policies change. If a workplace provides approved wording or a logo, use that guidance rather than creating a competing design.

Troubleshooting

The signature does not appear in a new message. Reopen the signature settings and confirm that the correct account has a default selected for new messages. In classic Outlook, check the account and the New messages dropdown separately. If you chose not to set a default, use the message compose window’s signature command to insert the saved signature manually. Also confirm that you are composing from the account for which the signature was created.

It appears in new messages but not replies. Return to the defaults and select a signature for replies and forwards. Some people intentionally leave this option blank to avoid repeating a large block in long email threads. If the signature is selected but still missing, test a new reply draft and check that it is not being removed by a template, add-in, or organization-managed setting.

The signature appears twice. Check whether Outlook is adding it automatically and whether you also pasted it into the message or a template. Remove the extra copy from the draft, then review the automatic defaults and any organization-provided signature tool. Test a fresh message after changing one source at a time.

Formatting or images look wrong. Simplify the signature, reduce image dimensions, and test with a plain-text version. Recipients’ email apps control how they render messages, so a layout that looks perfect in Outlook may wrap differently elsewhere. If pasted content has strange spacing, select it and reapply basic formatting, or rebuild the signature from plain text.

You cannot find the setting or changes do not stick. Search within Outlook Settings for signature, confirm you are editing the intended account, and save if the editor presents a save button. If a work or school account is managed by an administrator, a company add-in or policy may control signatures; ask your IT support team before changing managed settings. As a last check, close and reopen Outlook, then create a test draft again.

Frequently Asked Questions

Is an Outlook email signature the same as a digital signature?
No. An email signature is a sign-off block containing text or images. A digital signature uses a certificate to help verify the sender and message. In classic Outlook for Windows, certificate-related options are under File > Options > Trust Center > Trust Center Settings > Email Security. You need an appropriate digital certificate, and setup can depend on your organization. The regular signature editor does not create that kind of signature.

Can I have different signatures for different accounts?
Yes. In signature settings, choose the account you want to configure and assign its own default signature. Verify the selected account before editing or setting defaults, particularly if Outlook contains both personal and work accounts.

Can I add a signature to replies but not new messages?
Usually, yes. The automatic defaults for new messages and replies or forwards are separate in many Outlook versions. Leave the new-message choice blank and select a signature for replies. The exact controls vary by version, so check the signature settings for your app.

Will my signature show up in Outlook on my phone?
Not necessarily. Mobile Outlook may have its own signature setting, and a signature configured on a computer may not carry over in the same way. Open Outlook’s settings on the phone, find the signature option, and check the account or mobile signature there. Send a test email from the phone to confirm what recipients will see.

Can I add a handwritten signature?
You can insert an image of a handwritten mark if the editor allows images, but that does not verify your identity or make the email legally signed. Use a clear, appropriately sized image and retain your name and contact details as text. For identity verification, ask your organization about certificate-based digital signing.

Why does my signature look different to the recipient?
Email apps can interpret fonts, spacing, links, and images differently, and some block images by default. Keep the design simple, use common fonts, and avoid putting essential information only in an image. A test sent to another email app can show whether any adjustments are needed.

Try it: the Date Difference Calculator: days, months, years and weekdays between two dates, with the DATEDIF formulas.

More in How-to basics

Sources: Function behaviour and menu paths: Microsoft Support documentation for Excel. Method & sources

Spotted an error in this guide? Let us know.