==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.9.8 OpenLDAP
- Linux/BSD distribution name and version: Ubuntu 16.04 LTS
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  LDAP
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro? yes
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Hi,

Is it possible to configure postfix/amavis in a way that it checks and if necessary rejects spam during the initial smtp connect like the postscreen filters ? I would like that postfix sends the mail to amavis for checking and if necessary tells the sending mailserver that the mail was rejected so that the sending mailserver can generate a bounce on its own. This would help use reduce backscatter.

At the moment postfix accepts the message closes the connection to the sending mailserver and amavis generates a bounce if it is spam.