We maintain the primary DNS server in house, AT&T maintains the secondary's. We just switched to AT&T as our ISP providor this past Tuesday. Since then reverese lookup has stopped working, and some sites are rejecting email from us. Below is our reverse lookup file, this is on the primary, and it has a stanza in named.conf. I've done all the easy things like incrementing the serial number, stopped and started named, etc.
Can someone tell me why this file would not work? Do I have a typo or a syntax error? Would you have a suggestion on changing something that would improve it? It did work for several years with the ISP we just switched from.
@ IN SOA gatekeeper.mobot.org. postmaster.mobot.org. (
3600 ) ;Minimum
; Name Servers
IN NS gatekeeper.mobot.org.
IN NS cmtu.mt.ns.els-gms.att.net.
IN NS dmtu.mt.ns.els-gms.att.net.
; Addresses that point to Canonical name
14 IN PTR mbgmail01.mobot.org.