Try adding localhost if you are using the localhost for resolving. So it may look like allow-recursion { localhost; 192.1.1.0/24; 192.34.2.6; }; Alternatively, try changing /etc/resolv.conf to a nameserver provided by the data center you are at. -----Original Message----- From: centos-bounces@xxxxxxxxxx [mailto:centos-bounces@xxxxxxxxxx] On Behalf Of John Hinton Sent: 26 March 2006 04:57 To: CentOS mailing list Subject: Bind Recursion and Sendmail <snip> allow-recursion {192.1.1.0/24; 192.34.2.6; };