- Suport for PostgreSQL.
- Possibility to disable by default in the setup time of Postgrey. (I choose Spam Assassin).
- Support for cron.
- It would be nice to connect many instances of i-mscp under one control panel via an API.
- Antispam solution to throttle somehow the number of emails sent by a domain hosted on i-mscp.
And I guess the list can continue.