How to make scalable backend postfix server solution?

Here is the problem I am facing with. We are having a postfix server that needs to parse emails forwarded from some user's account and extract some data from it. Usually there are around 200 emails per user. We have tested it with 5 use开发者_如何学Crs and this all was good, but what to do if the number of user reaches some greater number, for example 10000 or 100000? Do you have any ideas how to make the postfix solution scalable so it could support this heavy load.

Our current postfix server resource is Ubuntu 10.04 machine with 512MB of RAM.

Best regards, Mladjo

Postfix is a mailer. Not a data miner, arbitrary string parser or general purpose light bulb. When receiving 10000 letters, you - the mentally unstable postal worker - do not want to open the letters, read them, cut out some parts, close them and then deliver them. You want to figure out if they're yours to deliver and put them in the right pile. For the other task, you call on your buddy Cron, who's dating Ms. Perl and have all the right features for previously mentioned tasks.