I'd like to see an import/export function added to the whitelist. There has been a lot of spam lately that has been given low spam Assassin ratings (under a score of 3), which has forced me to be very strict in my spam settings. This has stopped a lot of spam, but it has also resulted in more legit e-mails being caught. This wouldn't be such a big deal if I only got a few spam messages a day, but I get anywhere from 100-200 spam messages a day, and it is quite time consuming to carefully look through 100-200 spam messages a day to ensure that no legit e-mail messages are captured. Importing my address book into my whitelist would help in this regard.