Based on our record, SOGo seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Episode 3, which I will bookmark as it lists the solutions that they have selected. I read e.g. About SOGo and Zorin OS that I didn't know of. Source: over 1 year ago
Roundcube - Web-based IMAP email client
Hotello - Hotello is a SAAS cloud or on premise hospitality management software that manage establishment's day to day operations and customer service.
Zimbra - Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.
OPERA Property Management System - OPERA Cloud Services is an enterprise platform for hotel operations and distribution.
Rainloop - RainLoop is a web based email client.
RDPWin - Property Management Software for clients who have outgrown their current system.