I have been using this app since the 90's, and I haven't found anything that makes me want to switch. Admittedly, I don't use public mail servers and have no need to synch to them, but this app has allowed me to customize every aspect of my mail server to app that matters. I have never found anything that allows me to manage my mail any better. The only real shortage is the lack of html view, but that stops pages from automatically loading and logging personal info by spammers, and browser access is easy when desired, so that is a plus for me. It's not for nubes, but for those who want full mail control, it's a sweet match.