revalias equivalent / perl to read cdbs

[Efg�]

Has anyone written some perl script or other, that would do the
equivalent of sendmail's revalias ( -- I believe, as I've never used
sendmail) ?

What I want to do is rewrite all authorized mail that passes through my
relay to "canonicalize" addresses in headers.

Anyway, I'm on a perl script to do that right now, I'll post it if
there's interest.


On a related note, has anyone written perl code to read (maybe write)
a cdb ?


Florent