How to create a signature in Outlook When you want to have a customized signature in your emails. Click on images to enlarge. Creating a signature in the desktop app. 1.) After opening the Outlook desktop app, select the File   tab. 2.) Click on Options. 3. Click on Mail  then click on  Signatures. 4. Click New  and type what your want the signature to be called then OK . 5. Write your message in the Edit signature  box. Note : Make sure you use the drop down box for  New messages:  to select the signature you want to use. You can also choose to have it for replies and forwards as well. 6. Click  OK. Creating a signature in the web app. 1.) Sign into Gatormail like normal. At the top right corner, select the Settings  icon. 2. At the bottom of the newly opened panel, click View all Outlook settings. 3. Select Mail  then select  Compose and reply . 4. Click + New signature . 5. In Edit signature name  create a name to identify your signature. 6. Create your message for the signature. 7. Make sure you use the drop down box for New messages:  to select the signature you want to use. You can also choose to have it for replies and forwards as well. 8. Click Save .