Muhammed Sameer a écrit : > Salaam, > > Hello everyone, Can I write a postfix check myself? > > Actually, I want postfix to check for the quota and status of the user in a > database, and if the user is overquota or if the status of the user is > suspended, I want postfix to accordingly bounce the message with the > appropriate bounce message. > > The database is updated by another application that we have on our server. > > Is there an existing check that can help me do this, or do I have to write > another such custom check, if yes then can please someone guide me to how can > I do this. >
if it's a simple lookup to a mysql/postgres db, then use check_recipient_access. if you need more, you can write a policy server. one was posted to the list some time ago. search the archives and you should find it. PS. do not bounce. do reject. bounce means accept then generate an NDR later, which may cause backscatter. with reject, it is the "other" side which will have to generate the NDR (if it is a real MTA).
