Where is the Outlook signature location?
30 June 2025
0 min read
Introduction
Ever wondered where your carefully crafted email signatures in Outlook are hiding? Whether you're backing up your data, switching devices, or just curious, knowing your Outlook signature location can be incredibly useful.
So where are signatures stored in Outlook? Let's dive into the world of Outlook signature storage and uncover some handy tips along the way.
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Finding the location of Outlook signatures
The Outlook signature location is a specific folder within the application's data directory. The exact location varies depending on your operating system and version of Outlook, so where are Outlook signatures saved?
We'll cover some common paths for how to access signatures in Outlook for Windows and Mac below.
Outlook signature location on Windows
If you're using Outlook on a Windows computer, here's how you can locate your Outlook 365 signatures:
Open File Explorer and navigate to: C:\Users\[Username]\AppData\Roaming\Microsoft\Signatures
In this folder, you'll find all your saved signatures in .htm or .html format. You can also create subfolders for organizing your signatures.
You can also access the Outlook signature file location folder by doing the following:
Open Outlook.
Select File > Options.
In the Mail category, click Signatures... under the "Create or modify signatures for messages" section.
From here, you can create, edit, or assign default signatures for new emails and replies/forwards.
Pro tip: Can't find the AppData folder? This folder is hidden by default. To reveal it, open File Explorer, click on the View tab, and check the Hidden items box.
Outlook on the web signature location
If you're using Outlook on the web, here's where you can find your Outlook email signature:
Sign in at outlook.office.com.
Click the gear icon (Settings) in the top-right corner.
Click on Account > Signatures.
Under Mail > Compose and reply, you’ll find the signature editor.
Note: Outlook Web signatures are cloud-based and apply across browser sessions but don’t sync with the desktop app.
Outlook signature location on mobile (iOS and Android)
Open the Outlook mobile app.
Tap your profile icon, then the gear icon to access Settings.
Scroll to Signature under the Mail section.
Edit the signature directly in the text box.
Note: Mobile signatures are device-specific and won’t carry over to desktop or web.
Outlook signature location on Mac
On a Mac, the location of your Outlook 365 signatures is slightly different:
Open Finder and select Go > Go to Folder from the menu bar.
Enter ~/Library/Mail/
Select the folder with the signature version, such as V3. Here, you'll find all your saved signatures in .html format.
Pro tip: To quickly access the Library folder on a Mac, press Shift + Command + G and type in ~/Library/.
Why Outlook signatures don’t sync across devices
Outlook stores email signatures differently depending on the version you’re using:
Desktop: Stored locally on the device.
Web: Saved to your account’s web settings.
Mobile: Stored in the app on your device.
This fragmented approach is why changes made in one version won’t appear in another automatically.
How to backup your Outlook signatures automatically
While manually backing up your Outlook email signature files is always an option, you can also set up automatic backups to save time and effort. Here's how:
Outlook for Windows
Open Outlook and go to File > Options > Mail.
Under the Save messages section, click on the Signatures... button.
In the new window, select the signature you want to backup and click on Export...
Choose a location to save your backup file and click Save.
Repeat this process for each signature you want to backup.
Outlook for Mac
Open Outlook and go to Preferences > Signatures from the menu bar.
Control-click on the signature you want to backup and select Show in Finder.
Copy the signature file to a backup location.
Repeat this process for each signature you want to backup.
How to restore your Outlook signatures from backup
If you ever need to restore your Outlook email signature from a backup, just follow these steps:
Outlook for Windows
Open Outlook and go to File > Options > Mail.
Under the Save messages section, click on the Signatures... button.
In the new window, click on Import...
Select your backup file and click Open.
The signature will be imported and available for use in Outlook.
Outlook for Mac
Open Outlook and go to Preferences > Signatures from the menu bar.
Click on the plus (+) sign at the bottom left of the window to create a new signature.
Control-click on the new signature and select Show in Finder.
Replace the new signature file with your backup file.
Repeat this process for each signature you want to restore.
Where can I find my Outlook email signature within the app?
Sometimes, you just want to tweak your Outlook signature without diving into file systems. Here's how to find your Outlook 365 signature location directly in Outlook:
Open Outlook.
Click on File in the top menu
Select Options
In the Outlook Options window, click Mail
Look for the Signatures button and click it
From here, you can create new signatures, edit existing ones, or assign them to different email accounts.
How to export your Outlook signature
Switching devices, or just need your signature on a different computer? Here's how to transfer your Outlook signature to another device:
Outlook for Windows
Open File Explorer and navigate to: C:\Users\Username\AppData\Roaming\Microsoft\Signatures
Copy the .htm or .html file of the signature you want to transfer.
To copy your signature files, right-click and select Copy or use Ctrl + C.
Paste the files where you want them. You can use a USB drive, cloud storage, or another method to move these files to your new device.
On your other device, paste the file into the same location as above.
The signature will now be available in Outlook on that device.
Outlook for Mac
Open Finder and select Go > Go to Folder from the menu bar.
Enter ~/Library/Mail/V3/Signatures/
Copy the .html file of the signature you want to transfer.
To copy your signature files, right-click and select Copy or use Command + C.
Paste the files where you want them. You can use a USB drive, cloud storage, or another method to move these files to your new device.
On your other device, paste the file into the same location as above.
The signature will now be available in Outlook on that device.
Why Outlook signatures don’t sync across devices
Outlook stores signatures differently depending on the version you’re using:
Desktop: Stored locally on the device.
Web: Saved to your account’s web settings.
Mobile: Stored in the app on your device.
This fragmented approach is why changes made in one version won’t appear in another automatically.
Managing multiple Outlook signatures
Outlook lets you create multiple signatures, but switching between them depends on your platform:
Desktop: Assign defaults per account and use the Insert > Signature option when composing.
Web: Use the dropdown menu in the compose window.
Mobile: Only one signature is allowed per account.
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