Just my opinion, but I guess that's not really the market that dbmail is aimed at? If the complexity/overhead of pgsql or mysql is too much, why not just stick with regular mail spools?
OTOH, the dbmail facilitates adding other dbms easy enough, so why not investigate further. A Sleepycat Berkeley DB (Transactional Data Store version, possibly) system could be worth looking at too. One thing tho': After reading the SQLLite page, I'm not too sure if it would play nice with all the server processes... ? >I would like to suggest a SQLite (http://www.hwaci.com/sw/sqlite/) >backend.
