Create a Saved Signature in Outlook and Set It as Default

To create a saved signature in Outlook, open the signature settings for your Outlook version, choose New, enter and format your signature, then save it and select when it should be added to messages. You can make it appear automatically on new emails, replies, or both. The steps differ slightly between new Outlook, classic Outlook for Windows, Outlook on the web, and Outlook for Mac, so use the section below that matches your app.

What You’ll Need

Access to the Outlook account where you want to use the signature. If you have several accounts, decide which one it belongs to before setting a default.
The text and contact details you want to include, such as your name, role, phone number, or website. Check these details before saving.
Optional: a small logo or other image file, if you want an image in the signature. You can create a text-only signature without any extra files.
A current Outlook app or a web browser signed in to Outlook. The labels and layout can vary a little as Microsoft updates the interface.

Step-by-Step

Open the signature settings for your version of Outlook.
In new Outlook for Windows, select the Settings gear, then go to Accounts > Signatures. Outlook on the web generally uses Settings > Accounts > Signatures as well. If your web interface shows Mail settings instead, open Settings, choose Mail, and look for Compose and reply. In classic Outlook for Windows, choose File > Options > Mail > Signatures. On a Mac, open Outlook > Settings > Signatures; in some older Mac releases, the command is called Preferences. These routes lead to the signature editor, but the buttons may look different.
Choose the account that should own the signature.
If Outlook lists more than one email account, check that the correct one is selected before making or assigning a signature. A work mailbox and a personal mailbox may need different names, phone numbers, or disclaimers. In classic Outlook for Windows, the account selector appears in the Signatures and Stationery window. In new Outlook, web Outlook, and Mac, check the account or signature options shown in the settings panel. If only one account is listed, continue with that account.
Create a new signature and give it a useful name.
Select New, the plus sign, or Add signature, depending on the version. Type a short label such as Work, Personal, or Support. This label helps you recognize the saved entry in Outlook; it is not necessarily the name recipients will see. If you plan to use more than one signature, choose names that clearly distinguish their purpose. Select the new entry so the editing area is ready for your text.
Enter the signature content.
Type the lines you want recipients to see, for example your name, position, organization, and preferred contact method. Use only details that are appropriate for the account and audience. Keep the most useful information near the top, and avoid adding confidential information that should not be shared with every recipient. A compact signature is easier to read on phones and less likely to dominate a short reply. You can use a simple format such as:

Jordan Lee
Customer Support
jordan.lee@example.com

Replace the sample details with your own. You do not need to type your email address if it is not useful to recipients or is already clear from the message.
Format the text and add optional elements.
Use the editor’s font, size, bold, color, and alignment controls sparingly. A readable font and restrained styling usually work better than several colors or decorative effects. To add a logo, use the editor’s picture or image button and select a suitable image file. Keep the image small and include your essential contact details as text, since some recipients’ email settings hide images. If you add a link, select the relevant text and use the link control if available. Send a test message afterward to check that formatting and links display as intended.
Choose when Outlook should insert it automatically.
Look for default-signature menus for New messages and Replies/forwards, or similarly named options. Select your saved signature for new messages if you want it inserted whenever you compose a new email from that account. Choose it for replies and forwards only if you want it added there too. You can leave a default choice empty and insert the signature manually when needed. In classic Outlook for Windows, these options are in the Signatures and Stationery window under Choose default signature. Other versions place them alongside the signature editor.
Save the signature and close settings.
In new Outlook or web Outlook, select Save if the editor presents a Save button. In classic Outlook for Windows, select OK in the Signatures and Stationery window, then select OK again in Outlook Options. On a Mac, use the save or close control provided by the signature settings; changes may save automatically, but confirm the editor has accepted them before leaving. If you are unsure whether a change was saved, reopen the signature settings and check that the named signature and text are still there.
Test it in a new email and a reply.
Start a new message from the account you configured. If you selected a default for new messages, check that the signature appears in the message body. Then reply to a message and check the reply setting separately. Look for unexpected blank lines, a signature in the wrong place, missing images, or a signature belonging to another account. Send a test to an address you can check, or use a draft if you only need to inspect the layout. Outlook does not usually add a newly created signature to messages you already sent or drafts that were open before you changed the setting.

How to insert a saved signature manually: While composing a message, use the Message tab and select Signature in classic Outlook for Windows, then choose the signature name. In new Outlook, web Outlook, or Mac, look for Signature in the message toolbar or Insert menu. The exact location can depend on the window size and version. If the control is not visible, expand the ribbon or toolbar, or use the signature settings to confirm at least one signature has been saved.

Common Mistakes

Setting the default for the wrong account. If you use several mailboxes, a signature can be assigned to a different account than the one you are composing from. Check the From address and the account selected in signature settings.
Forgetting replies and forwards are a separate choice. Selecting a default for new messages does not always set one for replies. Configure each option intentionally, or leave replies blank if you prefer a shorter thread.
Expecting a saved signature to update old messages. Signature settings affect new compositions and, depending on the option, future replies. They do not rewrite emails already sent, and an open draft may need to be closed and reopened to reflect a change.
Using an image as the only source of contact details. Some email apps block images, and a logo may not load for a recipient. Keep names, phone numbers, and other essential details as selectable text.
Making the signature too large or elaborate. Large banners, multiple font styles, and long legal text can make messages harder to read, especially on mobile. Include what recipients need rather than treating the signature as a full brochure.

Tips

Create separate named signatures when your work and personal messages need different contact information. Choose the correct one manually if you do not want a default for every message.
Use a brief signature for replies if you email frequently. In long threads, repeating a large block after every response can make the conversation difficult to scan.
Keep a plain-text version of the important details. It is useful if image formatting fails, and it makes it easy to rebuild the signature on another device.
Review your signature when your job title, phone number, website, or preferred contact method changes. A saved signature can keep inserting outdated details until you edit it.
When testing a logo or link, check the message on another device or in a different mail app if possible. Outlook’s editor preview may not show exactly how every recipient’s software will render it.

Troubleshooting

The signature does not appear in a new message: Reopen signature settings and check that the saved signature is assigned to New messages for the account you are using. Confirm the From address in the compose window. If you created the signature while a draft was open, close that draft without sending and start a fresh message. You can also insert the signature manually from the message toolbar to confirm that it was saved.

The signature appears in new messages but not replies: Set a separate default for Replies/forwards if you want automatic insertion there. Outlook may leave replies without a signature by design when that option is blank. If you do not want repeated blocks in long conversations, keep the reply default empty and add the signature only when it is useful.

The signature is missing on another computer or in another Outlook app: Signature availability can depend on the Outlook version and account. New Outlook and Outlook on the web may share settings in some configurations, while classic Outlook signatures may be stored with that installation and may not appear everywhere automatically. Check the signature settings in the app where it is missing and recreate or copy the signature if needed. Do not assume that setting a signature in one app has changed every device.

An image or formatting is missing: Reopen the editor and check that the image is still present. If it is, send a test message and inspect it in the receiving app; some mail clients block remote images or simplify formatting. Try inserting a smaller image from a local file and keep essential information in text. If copied formatting looks inconsistent, remove the affected text and enter it again using the editor’s basic formatting controls.

You cannot find the signature command: Confirm whether you are using new Outlook, classic Outlook, or Outlook on the web, because their menus differ. In classic Outlook, use File > Options > Mail > Signatures. In new Outlook or web Outlook, open Settings and look under Accounts or Mail settings. On Mac, look under Outlook > Settings. If the app is managed by your organization and a setting is unavailable, ask your Microsoft 365 administrator whether a policy limits signature changes.

Frequently Asked Questions

Can I save more than one signature in Outlook?
Yes. Create additional entries in the signature editor and give each a clear name. You can choose a default for an account and select another saved signature manually while composing a message.

Can Outlook add my signature automatically?
Yes. Assign a saved signature to New messages, Replies/forwards, or both in the signature settings. The available labels vary by Outlook version, and the choices can be set separately for each account.

Will a signature I create in Outlook appear on every device?
Not necessarily. Availability depends on the Outlook app and account. Check the settings on each device, particularly if you use classic Outlook for Windows alongside web Outlook or another app.

Can I add a logo or clickable website?
Usually, yes. Use the image and link controls in the signature editor where available. Test the result, keep the logo modest in size, and include important contact details as text in case a recipient’s email app hides images.

How do I remove or change a saved signature?
Return to the signature settings, select the saved entry, and edit its contents. To stop it appearing automatically, change the default selection for new messages or replies. To remove the saved entry entirely, select it and use the editor’s delete or remove control; confirm before deleting if you may need it later.

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.