Travefy might be a bit more popular than SOGo. We know about 1 link to it since March 2021 and only 1 link to SOGo. 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: about 1 year ago
I recently booked a trip in India through a travel agent, and they shared the itinerary via https://travefy.com/. I enjoyed using the app to review the schedule for the upcoming day and that sort of thing. No idea how much of my fee went towards that. - Source: Hacker News / about 2 months ago
Roundcube - Web-based IMAP email client
ClientBase - Travel Agency
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.
Rezdy - Tour operators in 73 countries use Rezdy's booking software to sell thousands of products in real-time on their website and through distribution channels.
Rainloop - RainLoop is a web based email client.
Trams Back Office - Trams and ClientBase Products and Services