From: "Jane Gehan" > Hello, We are running postgrey on our incoming email servers, except the > listserv server. We are planning to begin using this on our listserv > server > soon. We will either share a grey list database with our other servers, or > set one up for use exclusively by the listserv server. > > Has anyone done this? Any tips as to the best way to move forward? My experience is with a different grey-list program rather than Postgrey. But I looked up a description of its operation, and it seems to be based on the same approach. The one problem I have seen, as a list owner, is when a contributor to the list uses a mail system that can send OR RE-SEND a message from different IP addresses. When this happens, the message can be blocked for an inconveniently long time, with each attempt to submit it rejected because it doesn't match the information in the database from previous tries. This does not appear to be very common. I have hundreds of subscribers and only one--unfortunately, a major contributor--whose mail often gets delayed for hours. But his organization seems to have contracted for email service through Microsoft. It comes to us from a wildly variable range of IP addresses, all identified as in the outlook.com domain. As far as I can tell--I've been exchanging messages with his email administrators--there is no way to get the retries to be submitted from the same IP address as the original attempt. You should probably be aware this can happen, and plan for an appropriate response to any complaints. Hal Keen ############################ To unsubscribe from the LSTOWN-L list: write to: mailto:[log in to unmask] or click the following link: http://peach.ease.lsoft.com/scripts/wa-PEACH.exe?SUBED1=LSTOWN-L&A=1