Overriding MX records to internal gateways

Chris Buxton cbuxton at menandmice.com
Thu May 8 13:37:20 UTC 2008

On May 8, 2008, at 5:46 AM, Barry Margolin wrote:

> In article <fvtu09$omn$1 at sf1.isc.org>,
> "Phaniraj Ranganath" <hrphani at gmail.com> wrote:
>> Or having a internal root zone & wild MX record pointing to relay  
>> servers
>> would be better bet ?
> No, because then you wouldn't be able to look up the A records in all
> the outside zones.

That's what application proxies are for.

Another advantage of an internal root zone is that it thwarts OzymanDNS.

Chris Buxton
Professional Services
Men & Mice

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