Is there possible way to hide API Key in EML file when sent mail with adaptive card in outlook?

Is there possible way to hide API Key in EML file when sent mail with adaptive card in outlook?https://community.appian.com/discussions/f/new-to-appian/34337/is-there-possible-way-to-hide-api-key-in-eml-file-when-sent-mail-with-adaptive-card-in-outlookI recently received a requirement to enable the acceptance or rejection of tasks directly through email by clicking a button, rather than navigating into Appian. To achieve this, I created a Web API to trigger the process model and configured it withen-USTelligent Community 12RE: Is there possible way to hide API Key in EML file when sent mail with adaptive card in outlook?https://community.appian.com/thread/131126?ContentTypeID=1Wed, 13 Mar 2024 08:44:54 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:7609d59d-7209-460a-86c7-abd05ef10650Stefan Helzle<p>IMHO, that whole requirement feels like an idea I would refuse to implement.</p> <p>And no, to call that API you need credentials and I think there is no way to somehow include these in a secure way.</p><div style="clear:both;"></div>