As we specified above, all addresses that have been collected via opt-in methods, thus obtaining the recipients’ permission to send them your communication. Some examples:
- contacts collected via a sign-up form on your website;
- contacts collected via an opt-in form at a tradeshow;
- contacts collected using a card that explains your newsletter service in your shop.
In all cases, what is crucial is that the user actively expresses his/her intention to receive your emails. Rented and bought lists are never allowed.