Your mailing list should be segmented down into interest groups. For example, parents with young children will probably want to receive very different marketing materials from you than teenagers or retired people would. Likewise, press contacts will want different information than your customers.
Breaking down your audience into segments will not only maximise the impact of your marketing (because you can tailor it to their interests) but also save you money and resources by cutting out the people who will not want to receive it.
We specialise in helping our clients achieve their goals. If you need help delivering this marketing idea, or if you want to take your strategy further, we at Wired Canvas can help. Have a look at our portfolio to see how we've helped others in the past and get in touch. We look forward to hearing from you!