When you sign up for a Gmail account, you agree not to use the account to send spam, distribute viruses, or otherwise abuse the service. All users on your domain are subject to these agreements, which are part of the Google Workspace Acceptable Use Policy.
If Google identifies a Gmail user who is violating these agreements, we reserve the right to immediately suspend the user. If the problem is domain-wide, we reserve the right to suspend the entire account and deny administrator access to all the Google Workspace services. In these cases, we send a notification to the registered secondary email address for the domain administrator.
Report abuse by a Gmail user who is violating these agreements, at your domain or another domain, to Google. Send a message to abuse@ or postmaster@, using the domain where the abuse is happening. For example, if you suspect a user at solarmora.com is abusing the service, send a message to firstname.lastname@example.org or to email@example.com. Google monitors these addresses for every domain registered with Google Workspace.
You can't use abuse and postmaster as usernames or aliases for your domain because they're reserved aliases. However, you can subscribe to these addresses, and get all messages sent to these addresses. Learn more at Handling reports of abuse and technical issues.