label-worx promo manager is amazing. feedback replies increased times three since we started using it.
but to answer your question: yes, you need to feed your own list of addresses in it. If you don't have contacts, there are plenty (expensive) services that do it for you: Promo One, Dilek PR, Tailored Communications, EPM Promotion, etc etc etc. The list is endless, and prices vary. Strangely enough, the expensive ones aren't necessairily the best ones
![Wink ;)](./images/smilies/icon_wink.gif)