Add override for sender greylisting
Greylisting is a great addition, but emails can be long when it comes to reception because of how the email server at the other end is setup. In one case I had a 100 ips cycled through before the email was accepted in the grey list. The IPs where all in the same subnet.
It would be nice to add a feature where the administrator can automatically whitelist the greylist or say that a particular subnet is permitted to be whitelisted.
This would save a lot of time on emails coming in for the first time from a particular source.