Step 1: Go to Configuration > Hotspot tab
2. Click the Plugins –> Email Settings –> Default
3. Modify the account and enter your email credential like server name, port, tls mode.
4. Enter your Mail address and its password. (this is the sender address for getting alerts and reports)
5. Click Save > Restart Service (Enable the email alerts in usage plans)
6. Now send a test email to check email is going success.