At present  in JSM Customer invite email ; we see a standard inviting email being send to end customers with the following template

"Welcome!

You've been invited to Test for Linked Issues portal. You can use this to raise requests and get help.

To finish setting up your account, simply click on your sign-up link."

However, there is no way to add a logo to the invitation email.

It would be great to have the ability to add a logo of our company so that customers can be assured of where these emails are incoming from and adds to a more aesthetic and organization specific invites