Can I just send anyone a newsletter?

No, you can only send newsletters to existing customers and subscribers who have given their explicit permission to do so.

Sending unsolicited newsletters to companies or individuals (spamming) is punishable by law in the Netherlands. The Netherlands Authority for Consumers and Markets (ACM) supervises this.

How do you obtain explicit permission? A common way is by using a sign-up form on your website. On your website and in your online and offline messages you can draw people's attention to the possibility of subscribing to your newsletter.

Within Laposta you can easily create a sign-up form and include it on your website.