Improve usability of mass mailing campaigns
Links mailing.contacts with res.partners.
Archive/unarchvice mailing list contact through partner
Schedule mass mailings
Configurable unsubscribe possibility for mass mailing
Odoo mailing list subscription With Subscriber Name
Module for organizing events for leads.
Well... pseudo-responsive (see description)
Configure the default value of Opt-Out for new partners
Set field Opt-Out as true by default while creating a partner