Additionally, items such as e-newsletters and correspondence courses offered via email can be of particular interest to potential customers. E-newsletters are typically longer documents than traditional email marketing pieces and can provide a great deal of additional information to the email recipient. Email correspondence courses may be offered in short segments and typically amount to a significant amount of information which is likely to be greatly appreciated by the email recipients. One final way to prevent email recipients from viewing your email marketing efforts as spam is to only send the emails to recipients who register with your website and specifically request for you to send them additional information and promotional materials. This opt in formula is ideal because it ensures you are not wasting your email marketing efforts on recipients who are not interested in your products or services. It also ensures the recipients of the email marketing campaign do not view the informative and promotional materials they are receiving as spam. This technique for compiling an email distribution list is quite effective but it is important to remember you should always include information on how recipients can opt out of receiving future emails, www.Automatic-Responder.com is a great service to help with this. This is important because the email recipients may have once been interested in receiving marketing emails but over time this may change. If they are no longer interested in these emails, they may begin to view the emails as spam if they are not given the option of being removed from the distribution list.