On 11/16/06, Daniel wrote:

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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?

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http://sqlgrey.sourceforge.net/

We have postfix+sqlgrey deployed across several mail hosts. It would be nice to have a replicated postgres behind it but otherwise it does the job very nicely. Also seen here: Similar dramatic reduction in inbound crap and recent increase in abuse of relays behind legit whitelisted hosts. Cheers, Mark.