hubsell enables you to get in touch with prospects in multiple countries. Since the 25th of May 2018 the countries in the EU region are facing strict data security restrictions and before you start reaching out, you want to make sure whether the country you reach out for is an opt-in or opt-out regime. So let's first take a closer look what we mean by those terms.

Opt-in means that you have to get consent from the party you're reaching out to, before you, for example, send them a mail. In other words: you have to request lawful consent.
Examples of lawful consent requests include:

They are of course, more ways to request consent, but the basic idea is that consent is not self-evident

Countries with an opt-in regime are: 

Opt-out means that the recipient has to withdraw consent after your initial outreach.
This withdrawal can happen for example by offering an unsubscribe-button in your mailing/newsletter. In any case you have to make sure to offer and opt-out option and follow the consent-withdrawal. 

Countries with an opt-out regime are: