On Tue, Apr 15, 2014 at 04:06:00PM -0400, Angus March wrote:
> I'm looking for an MTA that will work on an air gapped intranet. If the
> network is small enough, can this be done w/out a DNS?
Postfix works without DNS, and even (when not "improved" with vendor
patches) without a network connection at all.
To disable DNS in Postfix 2.11.0 or later:
smtp_dns_support_level = none
With earlier Postfix versions:
disable_dns_lookups = yes
I would still deploy DNS even on the isolated network. Just add
your own root zone, and off you go.
--
Viktor.
