Baraza is a free mobile instant messaging and presence server for Linux, implementing the "Wireless Village" (a.k.a IMPS) messaging protocols. It is designed to enable operators, service providers and ordinary Internet domain owners create and manage mobile communities.
Connect with all your friends & loved ones - build you own social networks on mobile, or connect with other open IM networks such as Google Talk.
Stay in Control - Decide who sees you online with stealth settings.
Everyone can use it - works with multiple phone types and networks.
Baraza uses the excellent Open Source PostgreSQL RDBMS (v8.2 and above) for all data storage. You therefore need to have a PostgreSQL server installation that Baraza can use.
Sorry, no other databases supported at this time. Perhaps at a future date!