Email client with full EAS (exchange active sync) capability

I am in the process of finally switching my main machine over to Linux. One of the last items I am still urgently trying to solve is to find an email client that is capable of taking advantage of the Exchange ActiveSync protocol. I have my own open source version of that protocol running and synchronize all of my devices with my server. That way I can keep all my emails, contacts and calendars in sync. The issue is that the only email client I found was bluemail which I have a few challenges to setup which I believe it's because of the self signed certificate. I am working on that piece. Anyway, are there other email clients that you can suggest that would support the EAS protocol? I tried Thunderbird, but that only supports the sync of calendar and contacts with the TB sync plugin, Evolution, supporting the EWS protocol. Unfortunately it seems that there are no other clients that support the ActiveSync one. I did some investigation but could not identify other alternatives. I would appreciate any suggestions for a client that does support the Exchange ActiveSync protocol and sync mails, calendar and contacts. Thanks realshadow