Postfix Users (and Outlook users)

[Ed Bruce]

Daniel Maher wrote:
> I cannot stress enough how much adding a recipient map to postfix has helped.  Right now, we poll our (Microsoft) Global Directory server once per hour, pull down the entire tree, sanitise the results (there are lots of non-RFC compliant addresses in there) and build a recipient map out of it.  This has been the /single greatest step/ we've taken to reduce the amount of spam our internal Exchange servers have to deal with: down from half a million per day to around 85,000.
>   

What tool do you use to poll your Global Directory?