qmail-smtpd/message parsing

[Daniluk, Cristopher]

Is it possible to have qmail-smtpd dump mail into a place where it can be
preprocessed by some spawned script? We need to intercept and parse/validate
all incoming mail before it hits qmail-send. Would it be more productive to
use some other SMTP server for receiving or does qmail-smtpd have built in
support for this?

Thanks,

Cris Daniluk