Help I cant send mail

[graystarr]

ok I can receive mail to both domains just fine. However I cant send mail out. here is some output of commands

[root@mail ~]# host `hostname`
mail.graystarr.com has address 66.29.169.139

[root@mail ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
192.168.20.10 mail.graystarr.com mail

[root@mail ~]# cat /etc/resolv.conf
search graystarr.com
nameserver 76.74.236.21
nameserver 192.168.20.1

[root@mail ~]# dig nuendorocks.com mx

; <<>> DiG 9.2.4 <<>> nuendorocks.com mx
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60149
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;nuendorocks.com. IN MX

;; ANSWER SECTION:
nuendorocks.com. 7200 IN MX 0 mail.nuendorocks.com.

;; Query time: 91 msec
;; SERVER: 192.168.20.1#53(192.168.20.1)
;; WHEN: Tue Nov 25 09:46:35 2008
;; MSG SIZE rcvd: 54

[uxbod]

As your server is on a private IP, hence the host command returns your external IP, you will need to setup a Split DNS - Zimbra :: Wiki architecture.

[graystarr]

ok I have that setup but it doesnt seem like like its working. what do you need to look at to help me out?
cat /etc/named.conf

options {
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
forwarders { 212.139.132.70; 212.139.132.102;
};
include "/etc/rndc.key";
// We are the master server for mail.graystarr.com
zone "graystarr.com" {
type master;
file "db.mail.graystarr.com";
};
zone "0.0.127.in-addr.arpa"{
type master;
file "named.local";
allow-update { none; };
};

[root@mail ~]# cat /var/named/db.mail.graystarr.com
;
; Addresses and other host information.
;
@ IN SOA mail.graystarr.com. hostmaster.mail.graystarr.com. (
10118 ; Serial
43200 ; Refresh
3600 ; Retry
3600000 ; Expire
2592000 ) ; Minimum
; Define the nameservers and the mail servers
IN NS 192.168.20.10
IN A 192.168.20.10
IN MX 10 mail.graystarr.com.

[uxbod]

You will need to change your /etc/resolv.conf

search graystarr.com
nameserver 192.168.20.10

[graystarr]

ok after changing the resolv.conf i get this

[root@mail ~]# host `hostname`
Host mail.graystarr.com not found: 2(SERVFAIL)
[root@mail ~]#

[uxbod]

ok can you resolve any other domains ?

dig zimbra.com mx

if not then has BIND actually been started ? Also check /var/log/messages for any errors from when BIND starts.

[graystarr]

~]# dig zimbra.com mx

; <<>> DiG 9.2.4 <<>> zimbra.com mx
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34904
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 5, ADDITIONAL: 3

;; QUESTION SECTION:
;zimbra.com. IN MX

;; ANSWER SECTION:
zimbra.com. 7200 IN MX 15 mta01.zimbra.com.
zimbra.com. 7200 IN MX 5 mta03.zimbra.com.
zimbra.com. 7200 IN MX 10 mta02.zimbra.com.

;; AUTHORITY SECTION:
zimbra.com. 172800 IN NS ns3.yahoo.com.
zimbra.com. 172800 IN NS ns4.yahoo.com.
zimbra.com. 172800 IN NS ns5.yahoo.com.
zimbra.com. 172800 IN NS ns1.yahoo.com.
zimbra.com. 172800 IN NS ns2.yahoo.com.

;; ADDITIONAL SECTION:
mta03.zimbra.com. 7200 IN A 66.163.172.82
mta02.zimbra.com. 7200 IN A 207.126.229.144
mta01.zimbra.com. 7200 IN A 207.126.229.143

;; Query time: 126 msec
;; SERVER: 192.168.20.10#53(192.168.20.10)
;; WHEN: Tue Nov 25 11:21:28 2008
;; MSG SIZE rcvd: 238

[uxbod]

Your db.mail.graystarr.com is wrong, you need to change the IN A entry to

mail IN A 192.168.20.10

or if you want graystarr.com to resolve aswell use

IN A 192.168.20.10
mail IN A 192.168.20.10

and then reload BIND.

[graystarr]

ok you mean like this?

[root@mail ~]# cat /var/named/db.mail.graystarr.com
;
; Addresses and other host information.
;
@ IN SOA mail.graystarr.com. hostmaster.mail.graystarr.com. (
10118 ; Serial
43200 ; Refresh
3600 ; Retry
3600000 ; Expire
2592000 ) ; Minimum
; Define the nameservers and the mail servers
IN A 192.168.20.10
mail IN A 192.168.20.10

[uxbod]

@ IN SOA mail.graystarr.com. hostmaster.mail.graystarr.com. (
10118 ; Serial
43200 ; Refresh
3600 ; Retry
3600000 ; Expire
2592000 ) ; Minimum
; Define the nameservers and the mail servers
IN NS 192.168.20.10
IN MX 10 mail
IN A 192.168.20.10
mail IN A 192.168.20.10