hmm, bronto if you occasionally got your head out of the sand it might have helped you . Not everything revolves around you, open source and one user installations. Zimbra is a fine product - but it's geared towards slightly different audience. The problem with Zimbra is that they offer open-source solution that is useful for either really cheap company or for a small company ( or personal use). The Opensource Edition should actually be renamed as Free Truncated Version Of Our Product. Considering, that I recently did a lot of comparisons between different mail server solutions, here are a few major differences between zimbra, scalix & axigen: PRICE, support, antivirus, etc. I actually compared enterprise editions for all major mail servers out there looking for an alternative to Exchange server. I'm a big proponent of opensource ( we are a debian and ruby shop), but there is such thing as business requirements, and axigen does better in these: * there is no Premium vs Regular account( yes I'm looking at you scalix) * axigen works with AVG ( our antivirus of choice, since we already invested in it.) * zimbra is geared towards web based approach, and axigen supports web interface as a feature * unfortunately I have to deal with 50% Outlook users (out of 300 email accounts, which means I need a lot of outlook connectors, for people that are not heavy email users), some mobile users and thankfully some Thunderbird installations * axigen is cheaper once you break the threshold of about 70 users. ( zimbra ~ 2800 for 100 users, Axigen is around 1500 to 2000, depending on add-ons, scalix is even more expensive, plus axigen's & scalix licenses are perepetual, with zimbra you would have to pay per year) * has better integration with ldap. I'm not trying to say that one is better than the other, since it all depends on a particular use case. If your business requirements require a web based solution, - like you working for a company that has users all over the world, then may be zimbra is a better solution, or may be dovecot, or may be you should use Gmail for Business or something. I don't know - it depends on situation. So I guess what I'm trying to say is, that I'm tired of hearing little script kiddies blackmouth good products, when they have no idea what the hell they are talking about.