That and I use a spooling service that performs "partial" greylisting. Those two things cut my spam by nearly 2/3's. I also quarrantine embedded and linked images and went through the process of whitelisting people who typically post with them. I also loaded into my whitelist all the list admin email addresses, and whitelisted a couple of domains that post a lot to many of the lists. I can send you copies of my blocks as well if you are interested. John At 12:36 PM 3/20/2007, you wrote: >We put the 'cuda at our border instead of just the Listserv server >itself and it greatly reduced the amount of spam that was being sent to >the lists from external. > > Bob > > > -----Original Message----- > > From: LISTSERV site administrators' forum [mailto:LSTSRV- > > [log in to unmask]] On Behalf Of Anne Toal > > Sent: Tuesday, March 20, 2007 8:56 AM > > To: [log in to unmask] > > Subject: A Listserv behind a spam firewall > > > > We recently put up a Barracuda spam firewall and I would like to know >if > > anyone out there has compiled best practices for running a Listserv in > > that > > way. > > > > Yes, I know the Listserv has anti-spam protection. However on lists >that > > are > > set up to send all posts to a moderator, it appears to ignore whether > > the > > message is spam and it sends the message approval requests anyway. I > > would > > like to use the Barracuda to stop those as well. > > > > The Barracuda can suppress daily spam summary messages, so we wouldn't > > have > > to worry about a daily summary message going to the members of all the > > lists. It can also send the daily spam summary messages to a specific > > address. Does anyone have experience with either configuration? How >well > > did > > it work? > > > > Does anyone have any methods that don't involve using an external > > antispam > > firewall to stop these unwanted approval requests full of spam? > > > > -aht