SendBox – Global Messaging Platform for CRM & Retention Teams (SMS / WhatsApp / Telegram)

Hi everyone!
We’ve been testing a platform that helps run automated messaging campaigns across SMS, WhatsApp, and Telegram, covering 200+ GEOs.
The service is called SendBox - built for CRM and retention teams to re-engage users, boost activity, and manage promo flows easily through API or automation.

It’s not a traffic source, more like a communication layer between brands and their users.
Would love to hear what tools others use for mass messaging or retention campaigns,...

SendBox – Global Messaging Platform for CRM & Retention Teams (SMS / WhatsApp / Telegram)