Count me as one of the 1 million EarthLink users setting their e-mail protection to "high." According to this article, that's the number of EarthLink customers using the strictest level of spam protection.

It's great. I get no spam. The only e-mail permitted to reach me is from users in my address book or in my outbound address history from the last year. EarthLink's Webmail service made it easy to upload my Mac OS X address book and outbound address history. If you're not a contact and I haven't written to you in the last year, you're blocked.

Once in awhile, a legitimate message gets caught in the "suspect email" box, but these are easily identified. I also occasionally have to be pro-active and add someone's address to the allowed list before receiving email from them. These are small aggravations compared to the value of enjoying email again without any spam at all.