Know and track (un)subscription reasons, GDPR compliant
Use the QWeb templating mechanism for emails
Force a mail layout on selected email templates
Copy tracking fields from leads to partners
Mass mailing lists that get autopopulated
Link partners with their survey results
Avoids duplicate mailing lists and contacts
Allow activity management on events and registrations
Automatically subscribe partners to its company's business documents
Add contacts to event and event type
Mail settings in events
Link mass mailing with event for excluding recipients
Sell events from Point of Sale
Well... pseudo-responsive (see description)