There's also SOGo (https://www.sogo.nu/ https://www.sogo.nu/), which I'd be interested to see how Grommunio stacks up against that. SOGo has been pretty reliabl

There's also SOGo (https://www.sogo.nu/ https://www.sogo.nu/), which I'd be interested to see how Grommunio stacks up against that. SOGo has been pretty reliable for my personal deployments.