o function properly, the application requires access to the Google Workspace environment and Google Gmail via an API client (Domain-wide Access Forwarding). Link in Panel https://admin.google.com/ac/owl/domainwidedelegation
API client ID for gSignature: 111875350985434773237
Data access is done according to the following ranges:
https://www.googleapis.com/auth/gmail.settings.basic - Manage basic mail settings. To install signature for the main address under the name My Signature and for aliases.
https://www.googleapis.com/auth/gmail.settings.sharing - Manage shared mail settings. To install the signature for the main address under the name My Signature and for aliases.
https://www.googleapis.com/auth/admin.directory.user.readonly - Read-only access to the list of employees along with their data i.e. Name, email address phone (work), phone (mobile), profile picture. In order to assign these data in the employee's signature.
https://www.googleapis.com/auth/admin.directory.orgunit.readonly - Read-only access on organizational units, their names and members. In order to install signatures for unit members.
https://www.googleapis.com/auth/admin.directory.group.readonly - Read-only access about groups, their names, the group's email address, and its members. In order to install signatures for group members.