Use the QWeb templating mechanism for emails

QWeb for email templates
Therp BV , Odoo Community Association (OCA)
FREE
2448
Link partners with mass-mailing
Tecnativa , Odoo Community Association (OCA)
FREE
1099

Webkul Base Survey facilitates you to take the survey of the people about any particular event using a question or series of questions.

Webkul Base Survey
Webkul Software Pvt. Ltd.
FREE
545

Know and track (un)subscription reasons, GDPR compliant

Customizable unsubscription process on mass mailing emails
Tecnativa , Odoo Community Association (OCA)
FREE
941
Register a lead directly in an event
Tecnativa , Odoo Community Association (OCA)
FREE
230
Link partner to events
Tecnativa , Odoo Community Association (OCA)
FREE
655
VTiger Calender Connector
Serpent Consulting Services Pvt. Ltd.
FREE
143
Resend mass mailings
Tecnativa , Odoo Community Association (OCA)
FREE
298

Copy tracking fields from leads to partners

Tracking Fields in Partners
Tecnativa , Odoo Community Association (OCA)
FREE
330

Show additional social icons in Mass Mailing snippet

Website Mass Mailing Social Share
Trey (www.trey.es)
FREE
29
Contact Smart Button
BHC
FREE
432

Disable mass mailing to partners by default (opt-out)

Disable mass mailing by default
Piotr Cierkosz
FREE
68

Enforces 1 registration per partner and event

Unique Partner per Event
Tecnativa , Odoo Community Association (OCA)
FREE
148
Mass mailing from events
Tecnativa , Odoo Community Association (OCA)
FREE
217
Reasons for event registrations cancellations
Tecnativa , Odoo Community Association (OCA)
FREE
172

Avoids duplicate mailing lists and contacts

Unique records for mass mailing
Tecnativa , Odoo Community Association (OCA)
FREE
590