DNS MX subdomain delegation

[Mathias Körber]

> Hi,
>=20
> I have configured a DNS BIND server for our domain dqs.de.
>=20
> In out LAN we are running an EXCHANGE Mail server and a separate
> helpdesk mail server (based on linux). Both run on the same IP subnet
> in our LAN.
>=20
> I want the helpdesk staff to be mailed under user at helpdesk.dqs.de
> (directed to the linux mailbox) and all others under user at dqs.de
> (directed to the exchange mailbox), so I set up two separate MX =
records
> in the zone file:
>=20
> dqs.de.           IN MX 10 exchange
> mail.dqs.de.      IN MX 10 linux
  ^^^^
   change this to "helpdesk" as per your requirement?