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Old 06-09-2005, 05:34 AM   #1
Registered: Oct 2003
Location: Kuala Lumpur, Malaysia
Distribution: Slackware 13.37 current
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sendmail dns lookups

I have a small NATed network with a mail server. This machine runs sendmail with uucp transport to my ISP mailserver. Mail is transferred in batches.
My problem is with local mail.

When sends mail to, the server first tries to reverse lookup my IP address and then in turn looks up and MX The latter gets a MX record response for the ISP mail server, which I hope that this mail will not go near.
I do not run a dns server on my network, just using the dnsmasq of the firewall. As we have some dhcp machines, putting the local IP addresses in the host file is not an option.
Old 06-09-2005, 10:35 PM   #2
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Registered: Jan 2001
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Simply add the hosts and their IP's then into your /etc/hosts configuration file if you don't want to setup an internal DNS server..


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