Review on Maildir Wizard by David Gonzalez

The best part is that it supports all types of emails like gmail as well outlook which makes my work easy when I have multiple clients using different email platforms or even with their own mail servers; It has some limitations but its free version helps me in understanding how things are working so far without paying for anything at least until i am satisfied about what's going wrong if any.

If you want something simple then go ahead otherwise use other tools available out there instead. You will be having hard time configuring this tool initially because most people who don't know much about mails tend to get confused while trying to configure everything right from beginning itself by setting up folders etc.