I understand that there is a workaround that might be used in some cases from here:
“There’s a check box in Admin / Email settings, to indicate that the system email address can be used by individual users. You need to check that.” This is not good as email is coming from whatever is entered for system account, instead of person that is sending it.
Or in case the only one user of the CRM that user’s email could be entered as a system’s outbound.
But this is still a bug in the CRM, that needs to be addressed for the proper emails sending.
Thank you!