Hi, xiaoyun.
Please refer to the following steps.
Prerequisites To implement alarm notification by email, the following conditions must be met:
The ECC800 is connected to a network with an email server through a WAN port. Both the Internet and local area networks (LAN) are supported.
Procedure
Step 1 Choose System Settings > Event Notification.
Step 2 Set related outbox parameters.
I. Set related parameters in the Outbox Settings area on the Mailbox Settings page. If the address type of the outbox is Domain name, choose System Settings > System Parameters, and set related parameters in the DNS Server Address area on the Monitor IP page.
NOTE:
The DNS server address is provided by the local network operator.
II. Click Test to check the email sending. If an email fails to be sent, check the outbox settings and DNS Server Address. If the email is sent successfully, click Submit
NOTICE:
If Test email sending failed is displayed, check whether the receiver's email server requires CA certificate verification. If it is required, download the CA certificate from the receiver's email website and upload it in the Mailbox Certificate area.