In order to benefit from your Signitic signature completely automatically, you need to add a default signature for your new messages.
1️⃣ Access your Outlook mailbox
From Outlook, create a new email and then select a signature.
2️⃣ Click on Signatures
Select the signature of your account in the dropdown choice on the right for "New messages".
If you wish, you can also select it for "Replies" and forwards.
Click on OK
Your signature will be automatically added and updated now with every new email.