Muhammed Sameer schrieb: > 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. >
Take a look at postfix access policy delegation at http://www.postfix.org/SMTPD_POLICY_README.html. This allows to create your own checks and to reject during the smtp dialogue.
