I am testing an installation for personal use and i just don't know what else to do. I have setup bind9 dns on the same server. The server is connected directly to the net (no router firewall). I have my hosting company forwarding to my local computer's ip for dns. I install zimbra fine (no errors) and i can send and receive local emails. I can also send external emails through my isp's smtp. However, i cannot receive any external emails.

Installation on ubuntu 8.04lts running Bind9 dns
local hostname: mail.hansenx6.com

dig a hansenx6.com
; <<>> DiG 9.4.2-P2 <<>> a hansenx6.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42739
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1

;; QUESTION SECTION:
;hansenx6.com. IN A

;; ANSWER SECTION:
hansenx6.com. 38400 IN A 154.20.107.200

;; AUTHORITY SECTION:
hansenx6.com. 17398 IN NS mail.hansenx6.com.

;; ADDITIONAL SECTION:
mail.hansenx6.com. 17398 IN A 154.20.107.200

;; Query time: 23 msec
;; SERVER: 75.154.133.68#53(75.154.133.68)
;; WHEN: Mon Nov 24 19:52:41 2008
;; MSG SIZE rcvd: 81
dig mx hansenx6.com

; <<>> DiG 9.4.2-P2 <<>> mx hansenx6.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47265
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1

;; QUESTION SECTION:
;hansenx6.com. IN MX

;; ANSWER SECTION:
hansenx6.com. 10751 IN MX 10 mail.hansenx6.com.

;; AUTHORITY SECTION:
hansenx6.com. 16615 IN NS mail.hansenx6.com.

;; ADDITIONAL SECTION:
mail.hansenx6.com. 16615 IN A 154.20.107.200

;; Query time: 24 msec
;; SERVER: 75.154.133.68#53(75.154.133.68)
;; WHEN: Mon Nov 24 19:53:30 2008
;; MSG SIZE rcvd: 81
nslookup hansenx6.com
> hansenx6.com
Server: 75.154.133.68
Address: 75.154.133.68#53

Non-authoritative answer:
Name: hansenx6.com
Address: 154.20.107.200
cate /etc/hosts
127.0.0.1 localhost
154.20.107.200 mail.hansenx6.com

# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
cat /etc/resolv.conf
search hansenx6.com
nameserver 75.154.133.68
nameserver 75.154.133.100
Unless my local dns is misconfigured (i am a noob) I can't think what else must be wrong. Any help is appreciated.

Thanks
Mike