A whitelist is a list of email addresses or domains that you have designated as legitimate email contacts. Messages from these contacts will not be blocked automatically, and will be delivered successfully to your inbox.
To more effectively filter spam, use the Whitelist in conjunction with the Blacklist. A Blacklist is a list of specific email addresses or domains considered to be associated with spam.
Adding an email address to the Whitelist
Open the main program window by clicking the ESET icon next to the system clock or by clicking Start → All Programs → ESET → ESET Smart Security.
If you seee the message Display: Standard mode in the lower left corner, toggle to Advanced mode by clicking Toggle Advanced mode, or by pressing CTRL + M on your keyboard.
From the main menu, click Setup → Antispam module.
The Antispam module will be displayed. In the middle of the window, click Whitelist.more...