I use Mail on OS X and it is good enough for my purpose. Could certainly be a bit more sophisticated, but most of the time, it works. I like to have a real emai

I use Mail on OS X and it is good enough for my purpose. Could certainly be a bit more sophisticated, but most of the time, it works. I like to have a real email client for my mails and not use a web app. There might be dedicated search engines for emails though, if search is very important. See, if you use search a lot and Google has the superior product for your use case, that's totally fine. But I guess most people use Gmail out of habit and not because it is truly superior to other email clients.