True

False

Exemption from approval

Administrator approval

Receptionist approval

Self-approved by visitors

Set local blacklist and whitelist: Both blacklist and whitelist can be configured at the same time, or only one of them can be configured.

In the "Whitelist" text box, enter the P address and mask of the SMTP Server to be added to the whitelist. You can enter multiple IP addresses, one IP address

Address one line. v

Enter the IP address and mask of the SMITP Server to be added to the blacklist in the "Blacklist" text box, you can enter multiple IP addresses, one IP

Address one line.

The priority of the blacklist is higher than that of the whitelist.