Adam Weremczuk via Postfix-users:
> Hi all,
>
> I have a highly isolated host (e.g. most outgoing traffic blocked, no
> DNS) but I would like to use Postfix on that host to send certain emails
> to a single address exam...@example.com.
>
> I've already allowed 25 TCP traffic to the email server of example.com,
> which is normally sufficient.
>
> How about telling Postfix that this server is the MX record of example.com?
>
> With DNS working that's how Postfix normally figures it out, by
> requesting MX records and trying them by priority order, right?
>
> Without DNS, can I hardcode it somewhere?
With
main.cf:
disable_dns_lookups = yes
smtp_host_lookup = native
the Postfix SMTP client will usually look in /etc/hosts.
Wietse
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