Such automated services are proven to lower costs, and free manpower for other tasks. Don't waste your time trying to manage your email distribution lists manually, and don't waste your money outsourcing the task. If you are paying an outside firm to manage your email lists or you are doing it manually, then you need to take a close look at List Manager. If you are not using email lists regularly, you need List Manager even more. List Manager allows the system to automatically administer all of your email lists with minimal internal effort, avoiding costly outsourcing expenses.
Email lists are a precious corporate asset.
Tasks like subscriptions, message acceptance, and distribution can all be handled automatically.