From the developer portal team members can choose to receive alerts from environments by e-mail this can be configured as following:
https://docs.mendix.com/developerportal/operate/receive-alerts/#email-alerts
There is also information in this page to make custom web hooks for alerts if you need more advanced functionality. Hope this helps!
If you are running on-premise instead of Mendix Cloud, one practical option is to use the Email Template module to send critical alert emails to team members. With this approach, you can define templates for critical alerts and trigger them from microflows when specific conditions occur. However, it is important to add safeguards before sending emails, such as checking whether a loop or repeated trigger is involved; otherwise, you may unintentionally send a large number of emails in a short time and overload or block your email server.