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From Martin Gregorie <mar...@gregorie.org>
Subject Re: TTL and DNSBLs (was Re: SpamTips.org: Why run your own DNS server?)
Date Tue, 05 Jul 2011 10:38:55 GMT
On Tue, 2011-07-05 at 12:20 +0200, Michelle Konzack wrote:
> Am 2011-07-04 09:24:19, hacktest Du folgendes herunter:
> > My experiments on real mail servers show that DNS caching is quite
> > ineffective for DNSBLs (at least for typical ones like Spamhaus that
> > use a short TTL on the order of 15-30 minutes.)
> 
> Is the TTL set global or are the TTLs set by IP?
> 
TTL is set for each zone file.


Martin


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