It appears that Bill Cole via Postfix-users <[email protected]> said: >DNS results are always cached. Postfix uses the system resolver, which >knows how to make DNS queries and how to use the TTL values that come >with every DNS answer.
They are, but the TTLs on the Spamhaus lists are 60 seconds for some, 900 seconds for the ones that change slowly, so your DNS cache doesn't help much if something's visiting every 5 minutes. Of course, on today's Internet 5 minutes is pretty slow. R's, John _______________________________________________ Postfix-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
