Unfortunately, at the moment, there is no mechanism for signing outgoing emails in Creatio.
We have registered the request for our development team to evaluate the possibility of implementing such a mechanism in future releases of the application.
Thank you for your question. We would like to inform you that our development team is currently working on the request to add the functionality you specified. At the moment, we do not have a specific ETA for the implementation of this functionality, but we do our best to add it in future releases of the application.
