You can add IP addresses only to the list of message senders. IP addresses cannot be added to the list of message recipients.
To add IP addresses to the list of message senders:
IP addresses should be entered one at a time. Repeat the process of adding addresses to the list for all IP addresses that you are adding.
You can enter an IPv4 address (for example: 192.0.0.1 or 192.0.0.0/16), an IPv6 address (for example: 2607:f0d0:1002:51::4), or subnet address in CIDR format (for example: fc00::/7).
The IP address you have added appears in the list of message senders with the IP addresses icon.
Changes made to the lists of message senders or recipients are saved in the message processing rule that you are configuring.
In order for the settings you have configured to be used during operation of Kaspersky Secure Mail Gateway, make sure that the rule for which you have configured settings is enabled.