Hello there, kl-leavesguard. It appears you are referring to the Mail icon in your customer profile. Please see the sample screenshot below.

To display the Mail icon, ensure that the customer's email is filled out. The icon stays hidden if that section is empty.
If you meant something else, could you please provide more details about where specifically the email icon is missing or include a screenshot? This will help us identify what went wrong and how to address the issue effectively.
I'll keep this thread open for further communication.