I just got an e-mail from an Earthlink subscriber via a Web-based form. After I responded to it, I got this note back:
“This is an automatic reply to your email message to [name_deleted]>@earthlink.net
“This email address is protected by EarthLink spamBlocker. Your email message has been redirected to a ‘suspect email’ folder for [name_deleted]@earthlink.net. In order for your message to be moved to this recipient’s Inbox, he or she must add your email address to a list of allowed senders.
“Click the link below to request that [name_deleted]@earthlink.net add you to this list.”
Guess what? It’s a hell of a lot easier to just click Delete. Which is what I did. I’m also setting my spam filters to automatically delete any future messages that contain this nonsense.
This isn’t the dumbest anti-spam program I’ve ever seen, but it’s close. If you’ve got a problem with spam, fix it yourself. Don’t push it back on me.
Ed Bott 
I love this feature, why should I get your e-mail if you are not in my email directory
You’re not going to get an email from me. I have no intention of sending email to you. But if you look at the message I was quoting, this was someone who had sent ME a message asking for help. When I replied to THAT PERSON’S message, they tried to make me jump through a hoop. Dumb, dumb, dumb.
If you want to send me a message and you expect a reply from me, don’t use this feature.