Hi to all Zimbra gurus,

well, after long time outsourcing from other vendors the email servers, finally we have decided to put the real world challenge on Zimbra mail server, so that we gonna put the Zimbra mail server in production in less than a week now and will be replacing all our clients other mail servers.

1. Installing Zimbra on Public IP address is a breeze, and is already on production sites

2. Installing Zimbra server in Split DNS environment is a breeze to, but a little problem which giving us a small headache. I hope the Zimbra guru's here can guide me to solve this matters .

Below is the outpost for my Split DNS environment server :

cat /etc/hosts
cat /etc/resolv.conf
dig yourdomain mx
dig yourdomain any
host `hostname` <- note backticks and not singles quotes



The results is :

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
192.168.1.102 mail.nha2u.com mail


cat /etc/resolv.conf
===================
search nha2u.com
nameserver 192.168.1.102



dig yourdomain mx
=====================
dig nha2u.com mx

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> nha2u.com mx
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13949
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 2

;; QUESTION SECTION:
;nha2u.com. IN MX

;; ANSWER SECTION:
nha2u.com. 74003 IN MX 10 mail.nha2u.com.

;; AUTHORITY SECTION:
nha2u.com. 74001 IN NS ns1.agigaworld.com.

;; ADDITIONAL SECTION:
mail.nha2u.com. 2592000 IN A 192.168.1.102
ns1.agigaworld.com. 31459 IN A 124.217.227.140

;; Query time: 1 msec
;; SERVER: 192.168.1.102#53(192.168.1.102)
;; WHEN: Mon Jun 28 17:05:25 2010
;; MSG SIZE rcvd: 109




dig yourdomain any
===================

dig nha2u.com mx

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> nha2u.com mx
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 25326
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 2

;; QUESTION SECTION:
;nha2u.com. IN MX

;; ANSWER SECTION:
nha2u.com. 73970 IN MX 10 mail.nha2u.com.

;; AUTHORITY SECTION:
nha2u.com. 73968 IN NS ns1.agigaworld.com.

;; ADDITIONAL SECTION:
mail.nha2u.com. 2592000 IN A 192.168.1.102
ns1.agigaworld.com. 31426 IN A 124.217.227.140

;; Query time: 0 msec
;; SERVER: 192.168.1.102#53(192.168.1.102)
;; WHEN: Mon Jun 28 17:05:58 2010
;; MSG SIZE rcvd: 109

[root@mail ~]#




host `hostname`
===============
host `hostname`
mail.nha2u.com has address 192.168.1.102
mail.nha2u.com mail is handled by 10 mail.nha2u.com.


Yet i still unable to send out emails to the outside world such as Yahoo, Gmail and Hotmail, but i can receive from them sometimes. I have checked thru all my logs and finds nothing there (according to me, sorry still learning and catching up). I have setup A record and MX record with PTR record in my DNS setup still yet to unable to sent mails out.

Probably any Zimbra Guru's here would like to help me about this situation that im facing here.

Thank you very much,

Regards,
Muthu