Once the plug-in is downloaded and installed, upon opening outlook, a CertainSafe Login screen will pop open. Use your Credentials that you use to sign into your Digital Safety Deposit Box.
You will also find the Login, Log Off and settings on the top right hand outlook, when you click the home tab on the top left of outlook next to file.
If the Log in button is grayed out, this is an indication that you are signed in and ready to send a secure attachment. If it is not grayed out, click the Login and put in your credentials to start sending secure attachments.