Re: [exim] Default enabling of dnsdb

On May 5, 2009, at 2:30 PM, Dean Brooks wrote:

>> Does anyone other than Bill have an opinion? I still contend that
>> there
>> is no disadvantage to doing it. Unless you're actually mad enough to
>> think that adding 4KB of useful code, is equivalent to, "bloat".
>
> Every single one of my Exim configurations uses dnsdb because I need
> to do tests for the presence of PTR records, which is impossible
> without dnsdb. The regular reverse DNS lookups also do forward
> lookups, which are fine, but in some circumstances you need to test
> just for he


I second this.

Our configuration file by default drops incoming connections on port
25 from any IP with no reverse DNS with the message: "Please come back
when your rDNS is configured".

The Exim $sender_host_name does a reverse AND forward verification and
that is too strict for our purposes.

We either make sure dnsdb is compiled in or we make a $run call out to
the "host" command.

Brian