UniOne Email API vs. Knock

UniOne Email API is a software interface that allows developers and businesses to integrate email functionality into their applications, websites, or systems. It provides programming tools, protocols, and methods that enable seamless communication with email servers and services. With UniOne Email API, users can send transactional and bulk emails, manage subscriptions, track email interactions, and access other essential email features programmatically.

Knock is infrastructure for sending product and customer messaging. Ship cross-channel product notifications and lifecycle messaging that drives engagement, growth, and retention. Knock has everything you need to power notifications for your product, including: - A powerful workflow engine to automate and manage your entire cross-channel motion, from in-product messaging to email and push notifications. - Branded, in-product messaging components, including embeddable inboxes, feeds, and lifecycle messages. - Broadcasts make it easy to send effective, one-time messages to custom audiences.