Then advertise, advertise, advertise to all kinds of free advertising on the internet. When others respond to your ad they will automatically get your ad as a response. This auto response message can be an ad for the product or service you have submitted that the person responded to, another product or service, or both. Remember the person receiving the auto response is getting plenty of email from their advertisement also, so the autoresponse must be well written and able to catch the attention of the receiver immediately. I have found that thousands can be reached in a short period by auto responding with a message that will encourage the receiver to pass on your ad to all on his mailing list.
Advertising is a numbers game.
If you have a good competative product and submit, submit, submit you ad you will ultimately reach those who will be interested in what you have to offer. There are many sites on the web to get a free email account, so why not utilize these services. Get your own email account specifically for advertising and start reaching thousands with your autoresponder ad immediately. This truly is painless marketing. You type the ad once forget about it and let your email client do the rest.