Listmonk - Send e-mail campaigns from a powerful dashboard. High performance and features packed into one app.
Track - Track is a cloud-based hospitality software to run your business, take bookings, accept payments, track marketing and calls, & manage revenue from anywhere.
Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.
Little Hotelier - Little Hotelier is an all in one booking and accommodation management system for small hotels, guesthouses and B&B’s.
Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
WebRezPro - WebRezPro offers property management system [PMS] for properties of all types and sizes.