I didn't hear back from any of them. It isn't that business owners are lazy. Tackling a stack of email isn't much fun for most people. Most of us don't particularly enjoy writing. You can keep up with lots of email fast and easily by using pre-written answers.
Every business answers the same questions over and over.
When you type an answer, save it in a file on your computer's desktop. The next time someone asks the question, copy and paste the answer into your reply. This simple strategy cuts the time needed for email by a factor of ten. One smart company has a secretary competently answer the day's email in about 20 minutes. The more you give away, the bigger your success.