Hi, is there a quick and easy way to configure the postfix blacklist/whitelist module of ISPConfig, that whitelist entries get checked before blacklist entries by postfix? The file mysql-virtual_recipient.cf contains the SQL Query to check for access: Code: query = select access from mail_access where source = '%s' and type = 'recipient' and active = 'y' and server_id = 7 This will match the first entrie within the mail_access table. What i'm trying to achieve is to blacklist a whole domain with "*@domain.tld", which works great, but exclude special mail adresses like "[email protected]" from it. Any idea how i can get this to first check for a access "OK"? Ultimately what i am trying to achieve is blocking all recipient adresses excpect the ones that i define. We have a few customers with local exchange servers, they grab the mail from a "catchall mailbox" on our mailservers and deliver them locally. To eliminae unwanted mails/spam, our mailserver should only accept mails for mailboxes that are existing within the local exchange. We have a software that keeps a list of the local mailsadresses that the exchange is aware of updated, so i know what i need to accept, and block the rest. Does anyone have a good idea how i can make this work, blacklisting/whitelisting with postfix seems a bit hacky?