Our Suite of Email Append Services can help you overcome your online marketing challenges, and succeed in today's competitive market place. Walter Karl Interactive's Email Append Services are available for both consumer and business-to-business files. Walter Karl Interactive utilizes a multiple vendor process that will deliver the greatest results in the shortest amount of time. This means that you will have access to Walter Karl Interactive's email database and the email databases of other quality data providers, but the team at Walter Karl Interactive will manage the entire process for you. There are many reasons you should communicate with your customers via email.   • Establishing online, as well as offline, relationships with your   customers will result in a higher return on your marketing investment. • You will dramatically increase traffic to your website. • You can take advantage of multi-channel marketing strategies, which   will result in higher campaign response rates over traditional postal   mailings or telemarketing efforts alone. • Not only will multi-channel marketing yield a higher response rate, but   you will be able to see the results from the online broadcast almost   immediately. Match Rates of our services are typically in the following ranges: Email Append: 15% - 35% Reverse Email Append: 20% - 35% Email Update Service (ECOA): 5% - 35% See Append Services page for more details.