So, we got the mass mailing working trough this workaround: how-to-send-email-to-each-contact But this only makes it possible to send email to the marked Partners and/or contacts, and when filtering out ex 3 partners we want to send the email to all the contacts related to that partner.

So, the question is, how do we make the mass mailing able to send to the marked partners AND the contacts related to them. Just to make it clear, we do not want to mark the contacts, because there is no way to filter out the contacts based on the parents category etc. or is it?

Could we put something else in the "To emails" field other than or in addition to "${object.email}"? like a "${object.child.email}" or so?