People who use Earthlink for their e-mail must have a very different impression of human behavior, because no one ever responds to their e-mail inquiries.  Every time I get an on-line order from an Earthlink user, our auto reply e-mail gets bounced, as we get the following message:

"I apologize for this automatic reply to your email. To control spam, I now allow incoming messages only from senders I have approved beforehand."

Usually followed by a hand-typed e-mail a day later-- some variation of;

"I placed an order from you guys the other day, but I never got a confirmation, so I reordered, and still got no confirmation.  What's wrong with you guys?  Please respond!!!!  Hello!!!????"

The world is a very impolite place for Earthlink users.  No one ever writes back.  I wonder if they ever wonder why.

Update:  We got two of these responses today.  Our only option is to use the old-fashioned telephone, assuming we get a phone number.  I've thought about writing a series of essays on communication skills.