https://www.thenewsletterplugin.com/documentation/addons/delivery-addons/sendinblue-extension/
Sendinblue for The Newsletter Plugin - TNP
May 28, 2025 - Integrates the Sendinblue mail delivery services with Newsletter WordPress Plugin.
newsletter plugin tnp
https://www.thenewsletterplugin.com/documentation/addons/extended-features/autoresponder-extension/
Autoresponder Addon for The Newsletter Plugin - TNP
Aug 14, 2024 - This addon adds to Newsletter a new level of automation with message series which run in autopilot to keep a customized relation with your contacts.
newsletter plugin tnpaddon