Ubuntu 6.06 and Zimbra Network Edition

[AutootuA]

I followed the instructions and everything installed fine. My domain is nunyad.biz. I can send emails fine but receiving them is an issue. My server is behind a firewall. Is there any way I can test to see if the firewall is configured correctly? HTTP, HTTPS,POP3 and STMP are all enabled and forwarded but emails get returned.

Here is some server info:

dig mx mail.nunyad.biz
; <<>> DiG 9.3.2 <<>> mx mail.nunyad.biz
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13560
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 2, ADDITIONAL: 3

;; QUESTION SECTION:
;mail.nunyad.biz. IN MX

;; ANSWER SECTION:
mail.nunyad.biz. 1249 IN CNAME nunyad.biz.
nunyad.biz. 3581 IN MX 10 mailstore1.secureserver.net.
nunyad.biz. 3581 IN MX 10 67.141.183.82.

;; AUTHORITY SECTION:
nunyad.biz. 1249 IN NS ns6.secureserver.net.
nunyad.biz. 1249 IN NS NS5.secureserver.net.

;; ADDITIONAL SECTION:
mailstore1.secureserver.net. 2043 IN A 64.202.166.11
NS5.secureserver.net. 2673 IN A 208.109.78.180
ns6.secureserver.net. 517 IN A 208.109.80.75

;; Query time: 41 msec
;; SERVER: 166.102.165.11#53(166.102.165.11)
;; WHEN: Thu Aug 30 08:33:51 2007
;; MSG SIZE rcvd: 203


host `hostname`

nunyad.biz has address 67.141.183.82
mail.nunyad.biz is an alias for nunyad.biz.
mail.nunyad.biz is an alias for nunyad.biz.
nunyad.biz mail is handled by 10 67.141.183.82.
nunyad.biz mail is handled by 10 mailstore1.secureserver.net.

[falko]

You must check if there's an MX record for nunyad.biz, not for mail.nunyad.biz (or do your emails have the form user@mail.nunyad.biz?).

[AutootuA]

I've tried sending emails to my server both ways and neither works, but I want to go with the user@nunyad.biz format.

dig mx nunyad.biz

; <<>> DiG 9.3.2 <<>> mx nunyad.biz
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 46318
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 3

;; QUESTION SECTION:
;nunyad.biz. IN MX

;; ANSWER SECTION:
nunyad.biz. 3600 IN MX 10 67.141.183.82.
nunyad.biz. 3600 IN MX 10 mailstore1.secureserver.net.

;; AUTHORITY SECTION:
nunyad.biz. 18 IN NS ns6.secureserver.net.
nunyad.biz. 18 IN NS NS5.secureserver.net.

;; ADDITIONAL SECTION:
mailstore1.secureserver.net. 795 IN A 64.202.166.11
NS5.secureserver.net. 1887 IN A 208.109.78.180
ns6.secureserver.net. 1887 IN A 208.109.80.75

;; Query time: 113 msec
;; SERVER: 166.102.165.11#53(166.102.165.11)
;; WHEN: Fri Aug 31 07:57:40 2007
;; MSG SIZE rcvd: 184

[AutootuA]

I'm located behind a firewall - NAT device and I found the problem to be a DNS problem. There is some mention about it in the beginning of the" How To", but nothing in detail about MX records and such. I found some instructions on DNS in "The Perfect Ubuntu Server Setup ". I also looked in the Zimbra forums and found a thread on split-dns. Between the two, I was able to get it going. Thanks for the help...

[Dijital]

Please share how you got this working as I am having many problems with this part of the DNS, and would appreciate any assistance, other than that I'm good to go. I too am behind a NAT firewall but I have all ports forwarded to that IP, suggestions?

-Dijital

[falko]

How does your MX record look?

[AutootuA]

I found another tutorial that shows how to set up a split-dns. I still don't understand the whole DNS thing yet. The other tutorial has emails coming and going as user@mail.example.com. I really want emails as user@example.com. I followed your "How To Install Zimbra Collaboration Suite (ZCS) On Ubuntu" and right before installing zimbra did this:

1) apt-get install bind9

2) edit /etc/hosts
127.0.0.1 localhost.localdomain localhost
xxx.xxx.xxx.xxx mail.MYDOMAIN.com mail

***configure bind for split DNS.***

3)edit /etc/bind/named.conf.options
// forwarders {
// 0.0.0.0;
// };

Uncomment and change to reflect your own upstream DNS servers.


forwarders {
xxx.xxx.xxx.xxx; xxx.xxx.xxx.xxx;
};

4) Append to /etc/bind/named.conf.local

// We are the master server for mail.MYDOMAIN.com
zone "mail.MYDOMAIN.com" {
type master;
file "db.mail.MYDOMAIN.com";
};

5) Create the zone file: /var/cache/bind/db.mail.MYDOMAIN.com

;
; Addresses and other host information.
;
@ IN SOA mail.MYDOMAIN.com. hostmaster.mail.MYDOMAIN.com. (
10118 ; Serial
43200 ; Refresh
3600 ; Retry
3600000 ; Expire
2592000 ) ; Minimum
; Define the nameservers and the mail servers
IN NS xxx.xxx.xxx.xxx
IN A xxx.xxx.xxx.xxx
IN MX 10 mail.MYDOMAIN.com.

6) Modify /etc/resolv.conf -- Change upstream name servers to your own IP:
nameserver xxx.xxx.xxx.xxx

7) /etc/init.d/bind9 reload

8) To test it, nslookup mail.MYDOMAIN.com should point to xxx.xxx.xxx.xxx


What would have to change or be added to get user@example.com to work?