Postgrey is a service, which in most cases runs on 127.0.0.1 on a port of your choice. There is nothing stopping you from binding the service to a public/private address and pointing all your postfix MTAs to the same service. This is the recommended way to deploy greylisting on email clusters ... best regards, truman On 16/11/2006, at 2:08 PM, Jasper Bryant-Greene wrote:
Question around this - we are currently looking at implementing it, but we have three mail servers behind a load balancer. The software we're looking at is postgrey (as we use Postfix), but it uses BDB database files...
Which means each server has an individual greylisting database, and mail could potentially (worst case) be bounced three times before getting through. Has anyone solved this problem already?
Jasper
Richard wrote:
Hi Russell
Russell Fulton wrote:
This might be of interest to NZNOG members -- we have just implemented grey listing for some addresses and the results have been dramatic to say the least...
Likewise, I've been using greylisting on my various domains, some of which have been receiving spam for many years, for a year or so now. The initial results were staggering, but in recent months I've started to get a trickle comiag through again - looks like the scum are searching for open relays again. Still, at least *that* problem isn't as big as it once was.
Cheers
Richard
-- Richard Stevenson Freelance Unix geek 027 285 5873
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