Remove Signature from Outlook on Desktop (Windows/Mac)
If you use Microsoft Outlook on Windows or Mac, you can easily delete or change your signature in the Outlook Options menu.
Classic Outlook
Windows
- Open Outlook.
 - Select File, Options, Mail, Signatures.
 - Delete any existing signatures or make sure the "New messages" and "Replies/forwards" default signature is set to (none).
 
Outlook on Mac
Open Outlook.
- Select Outlook, then Settings in the top toolbar.
 - Under Email, select Signatures.
 - Delete any existing signatures or make sure the "New messages" and "Replies/forwards" default signature is set to None.
 
Outlook Online / New Outlook
Windows:
- Open Outlook on your Windows or Mac computer.
 - Click the gear icon in the upper right corner.
 - In the Outlook Settings window, click Accounts.
 - Go to Signatures.
 - In the Select signature to edit section, choose the signature you want to remove.
 - Click Delete or clear the signature text manually.
 - Under Select default signature, set New messages and Replies/forwards to (No signature).
 
Mac:
- Open Outlook.
 - Go to Outlook in the top menu bar > Preferences.
 - Click Signatures.
 - Find the signature you want to remove.
 - Select it and click the minus (-) button.
Save changes. 
Remove Signature from Outlook Web (OWA)
- Go to outlook.office.com and sign in.
 - Click the Settings (gear) icon in the upper right corner.
 - In the Outlook Settings window, go to Accounts.
 - Navigate to Signatures.
 - In the Select signature to edit section, choose the signature you want to remove.
 - Click Delete or clear the signature text manually.
 - Under Select default signature, set New messages and Replies/forwards to (No signature).
 
Remove Signature from Outlook Mobile App
Android:
- Open the Outlook app.
 - Tap the menu button (top left), then tap Settings (gear icon).
 - Tap Signature.
 - Delete the text in the signature box to remove it.
 - Tap the checkmark to save.
 
iOS:
- Open Outlook app.
 - Tap your profile icon (top left), then Settings (gear icon).
 - Scroll to Signature.
 - Erase the signature text.
 - Tap the checkmark to save.
 
iPhone Native Mail Application
- Navigate to iPhone Settings.
 - Search for the Mail app and remove contents under Signature.