I’ve spent a few weeks experimenting with PHPList on a sandbox server, and it’s running quite satisfyingly.
The next step is integrating it with my WordPress website. It has the OptimizePress plugin, which is a complete online sales platform builder. Unfortunately the plugin only sports options to integrate autoresponder-marketing platforms such as Aweber and Mailchimp. There is a possibility to integrate other marketing services (PHPList is not mentioned) through custom HTML forms.
Now I’m a bit clueless here. Any suggestions on where to search first ?