Copado notification emails not received in a SandboxWorking with Copado you might notice that after a Sandbox refreshing you stopped receiving email notifications from Copado (e.g. "Deployment completed Successfully", "Copado task not executed", "There is a Manual Task waiting for your intervention", etc). This could be caused by the configuration of Deliverability Settings for Emails Sent from Salesforce. After a Sandbox refreshing, the Access level option in the Access to Send Email section is set to No access, it prevents all outbound email to and from users.
You can check the following documentation: https://help.salesforce.com/articleView?id=emailadmin_deliverability.htm&type=5