Topic: Possibly the best support I have ever received!
I recently upgraded from the free version to the Pro version and came across some things that I could not accomplish. I reached to support and not only were they really great in helping me with the upgrade they actually wrote the missing functionality I was looking for into the system. Their response times are also phenomenal and I can highly recommend this product!
----Spider Email Archiver: On-Premises, lightweight email archiving software developed by iRedMail team. Stable release is out.