Transfer Outlook signature to new computer: what roams, what you rebuild and how to check the images

If you searched “transfer Outlook signature to new computer”, the short answer is to check whether you have to. Microsoft says signatures can now roam with a Microsoft 365 or Outlook.com mailbox, but only some of them do, and the rest stay on the old machine. These steps follow Microsoft’s pages on adding an Outlook signature, Outlook roaming signatures and signatures in Outlook for Mac, read on 5 October 2026.

Before you transfer Outlook signature to new computer: does it roam?

Microsoft’s roaming page says signatures used to be stored locally on a Windows device, so anyone wanting the same one elsewhere had to recreate it. Now, for Outlook build 2303 or higher, signatures are stored in the user’s mailbox and are available on all devices where that account is configured.

The same page limits who benefits. Roaming is for mailboxes on Microsoft 365 or Outlook.com. It says accounts on Exchange on-premises servers, with third-party email services, or using POP/IMAP will not roam their signatures at this time.

Your situation	What Microsoft’s pages say
Microsoft 365 or Outlook.com mailbox, build 2303 or higher	Default signatures were copied to the mailbox and can appear on other devices
The same account, but a signature that was not a default	It does not roam and stays under Signatures on this device
Exchange on-premises, POP, IMAP or third-party mail	Does not roam at this time
Classic Outlook signature made before roaming	Stored locally on the device where it was created

Notice the second row. A person with four signatures where only some were set as defaults may find a few on the new computer and the others gone. That is the common surprise, and it is why the first step is to look before you rebuild anything.

Transfer Outlook signature to new computer: the six steps

These steps assume classic Outlook for Windows, which is where most people meet the problem. Each menu name comes from Microsoft’s page.

1. Check first. On the new computer, sign in, open a new email and select Message, then Signature. If your signature is in the list, you are done.
2. Gather what you need while the old computer still works (see the kit below).
3. Open the editor. Select Message, Signature, Signatures. Pick the account in the E-mail account box, choose New under Select signature to edit, and name it.
4. Write it. Under Edit signature, compose the text. For bullets, tables or borders, Microsoft suggests building it in Word and pasting it in.
5. Add the logo. Select the Image button, find the file and choose Insert. To resize, right-click the image, choose Picture, and on the Size tab leave Lock aspect ratio ticked.
6. Set the defaults and test. Under Choose default signature, set New messages and Replies/forwards, then choose OK.

One more fact from the page saves a wasted test. Classic Outlook does not add the new signature to the message you had open, so insert it by hand once. Our guide to adding a signature in classic Outlook explains the two defaults in detail.

Transfer Outlook signature to new computer: the kit to gather first

Microsoft’s pages describe how to create a signature, not how to export one. So the safest way to transfer Outlook signature to new computer is to collect what a rebuild needs.

• The text, with every line, phone number and web address exactly as it appears.
• The original logo file, not a screenshot of it. This is our suggestion, not a Microsoft step.
• The link addresses behind any words you made clickable.
• Which signature was the default for new messages, and which for replies, for each account.
• The names of any extra signatures, so the list looks the same.

Here is the sort of signature that kit should rebuild. The company and person are invented, and the logo is the item people forget to bring.

Example only. The company and person are made up. A rebuild needs the text, the logo file and the link addresses.

Selecting the content of the Edit signature box and copying it into a document is a reasonable backup. Microsoft’s page does not describe that, so treat it as a convenience and check how it pastes before you rely on it.

Check the images after you transfer Outlook signature to new computer

The logo is where a rebuilt signature most often goes wrong. Check it in this order.

1. Open a new message and insert the signature by hand.
2. Look at the size. If the logo looks stretched, reopen the Signatures window and fix it on the Size tab with Lock aspect ratio ticked.
3. Send a test to yourself and look at the reading view, not the compose window.
4. Look for an attachment. Microsoft warns that Vector Markup Language (VML) tags can make some elements appear as attachments instead of inline images. If that happens, use the Image button instead.

When the picture arrives as a separate file, our guide to signature images that show as attachments covers the cause from the reader’s side.

Transfer Outlook signature to new computer in new Outlook and on the web

Microsoft’s note for classic Outlook says signatures on a device are stored locally and may not be available when you use Outlook on another device. To use the same signature across supported Outlook experiences, it says to create and manage it through your Microsoft account where available.

In new Outlook the path is Settings, Accounts, Signatures, then Add signature, with the checkboxes at the bottom for new messages and for replies and forwards. The page also says that if you have a Microsoft account and use Outlook and Outlook on the web, you need to create a signature in both. If a signature seems to have vanished after switching apps, new Outlook signature missing walks through it.

Microsoft also has a page on signatures not syncing between desktop Outlook and Outlook on the web, last updated in November 2024. It says the cause was fixed in updates released that month, and gives a registry workaround that we do not repeat here, because editing the registry is a job for your IT admin.

Transfer Outlook signature to new computer on a Mac

Microsoft’s roaming page speaks of Outlook for Windows, and the Mac page says nothing about moving signatures between computers. So on a new Mac you rebuild.

1. Select the Outlook menu, then Settings.
2. Under Mail, select Signatures.
3. Select the add icon, type a name, then write the signature in the editor.
4. Use See more items to add a picture or a link.
5. Under Choose which signature appears, pick the account and set For new messages and For replies or forwards.

More on the Mac menus is in our Outlook for Mac guide. If you plan to paste finished markup, see adding an HTML signature to Outlook.

What the pages do not say

• The folder. None of the Microsoft pages above names the place where classic Outlook keeps signature files, so we will not guess one.
• An export or import button. Not described, so no file route to transfer Outlook signature to new computer is offered here.
• Moving between Windows and Mac. Not described.
• Add-ins that copied signatures. The roaming page says add-ins that changed signatures on the hard drive and in the registry will no longer work once roaming is enabled.

A company with many new laptops

When one person gets a new computer, a rebuild is a ten-minute job. When thirty people do, each one rebuilds a slightly different signature. emailfooter is a free WordPress plugin that keeps the design in one place, so the new laptop only needs the steps again: the employee copies the signature and follows numbered instructions for their Outlook. It does not send anything to a mailbox on its own, and it is English-only for now. Handled this way, you transfer Outlook signature to new computer by repeating a short list, and the design never lives only on the old machine.

Frequently asked questions

Does my Outlook signature move to a new computer automatically?

Sometimes. For Microsoft 365 and Outlook.com mailboxes on build 2303 or higher, Microsoft says default signatures roam. Others stay local.

Where does Outlook store my signature on my computer?

Microsoft describes classic signatures as local to the device that made them. The pages we read do not name a folder.

How do I transfer Outlook signature to new computer with my logo?

Rebuild it in the Signatures window, add the logo with the Image button, resize it on the Size tab and send yourself a test.

Can I transfer Outlook signature to new computer on a Mac?

Microsoft’s Mac page describes creating signatures, not copying them. Recreate it under Outlook, Settings, Signatures.