Defining a "messagle handler" in Postfix

We are using Postfix for mail delivery and I am trying to make a shell script handle an email sent to foo-bar-baz-bat@example.org.

Is there a way to do this and how?

I am trying to create an email-based front-end for a bulletin board. The users have split into two factions: those who would like to use the forum and those who prefer using mailing list. The idea is to create a solution that would please both groups by sending an email notification about the new post (this is the easy part) and also allowing people to post via email, where the metadata (such as topic id) would be encoded in the email address.

From stackoverflow

• in /etc/aliases

  you should be able to alias to a script like so

  foo-bar-baz-bat@example.org: |"/path/to/ScriptOrExecutableHere"
  

  I did this with my Trac installation and it worked like a charm...

  EDIT: Oh...i didn't realize you were going to be aliasing dynamic addresses...I think you'd need a script to alias the e-mail addresses as forum threads are created...

  EDIT2: Actually you might be able to use the catchall for something like this...

  I haven't done it but you would alias "@example.org" to the command. See here for more

  Arnelism : is it possible to have a regexp alias?

• If the example.org email is only used for discussions you could forward whole @example.org to your script. Or you could use @discussions.example.org.