1. Open Outlook. Then, open the Outlook menu in the top left corner. 

Outlook menu > Preferenceshttps://s3-ap-southeast-2.amazonaws.com/aus-cdn.freshdesk.com/data/helpdesk/attachments/production/51047019498/original/unvZjJYAMgQaOtHrT9oBfQfM2eGb7BCf2w.png?1649650510" style="border-width: initial; border-style: none; max-width: 100%;" class="fr-fic fr-dii" data-attachment="[object Object]" data-id="51047019498">

2. Under the Email section, click Signatures.

Under Email, click Signatures.

3. Select each signature listed. Under "Choose default signature" change "New messages" and "Replies/forwards" to None. 

Change a signature