SmarterMail - IP Blacklist
Adding an IP address or a range of IP addresses to the SmarterMail blacklist will allow you to block those IP addresses from accessing SmarterMail services. This is useful if you find an IP address that is attempting to brute force one of those services.
Process to adding an IP address.
Step 1 - Log in to Smarter Mail as the system administrator.
Step 2 - Click settings icon button.
Step 3 - Click on Security in the left hand column (The shield icon).
Step 4 - Click on Blacklist then click on new to create a new entry.
Step 5 - Enter the IP Address or the IP Range you wish to block and select the services you wish to block that IP for.
Step 6 - Click Save.