Just trying to see if ISPConfig has a some sort of automatic email filter options similar to procmail. On an old system we had some procmail filters that on receiving emails moved them to appropriate folders for that email address. Our system is currently using postfix and dovecot in the background.
Yes, such a mexhanism exists. The filter language from dovecot is called sieve and you can setup filters when you open the mailbox settings in ISPConfig.