In order to benefit from your beautiful Signitic signature completely automatically, you must add a default signature for your new messages.
From Outlook, create a new mail then select A Signature.
Then click on Signatures ...
Finally, simply select the signature of your account in the drop-down choice on the right for "New messages". If you wish, you can also select it for "Replies" and transfers.
And voila, your beautiful signature will be automatically added AND updated now with each new mail.