I use many features of Thunderbird. And it works fine with outlook, even including calendaring, with the Owl plugin. It is a paid plugin, but it makes life much better.
I've tried to use Thunderbird several times over the years, and I always ended up going to something else. Maybe the UI bothered me, I'm not sure.
I've tried to use Thunderbird several times over the years, and I always ended up going to something else. Maybe the UI bothered me, I'm not sure.