Outgoing mail works, incoming does not

[SnowPunk98]

Can anyone help me out here? Just let me know which logs you need?

[phoenix]

Some idea of which version/release of zimbra and which operating would be a start. Is this a new install or an upgrade? A re you behind a router and do you have a Split DNS set-up? Have a look in the log files and see what errors you're getting. Is it all incoming mail that you're having a problem with or just from some domains? Is there any firewall and/or SElinux enabled on your server?

[SnowPunk98]

Sorry, late post before bed, just being lazy.

- Cent OS 5.2
- Current release of Zimbra
- Split DNS (Bind internal and external pointing at public)
- New installation, got MX DNS error during setup
- Behind a firewall, opened port 25 to the server
- I only have one domain, I changed the admin@server.domain.com to admin@domain.com (that should work right?)
- Disabled SELinux on the server and no other firewall should be running.

[uxbod]

If the MX check failed then it could be how your DNS is setup. Please post the following

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

[phoenix]

The usual questions follow. Please post the output of the following commands (run on the zimbra server):

host `hostname`  <-- use backticks not single quotes
cat /etc/hosts
cat /etc/resolv.conf
dig yourdomain.com mx
dig yourdomain.com any

To make your output easier to read please format the output of each command with the code tag (highlight the text and hit the # symbol above the edit box).

[SnowPunk98]

I have my MX record pointed at an A record that points to the public IP.

# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1       localhost.localdomain   localhost
192.168.0.200   server01.domain.net server01
::1     localhost6.localdomain6 localhost6

search domain.net
nameserver 192.168.0.200

; <<>> DiG 9.3.4-P1 <<>> domain.net mx
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 3105
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4

;; QUESTION SECTION:
;domain.net.               IN      MX

;; ANSWER SECTION:
domain.net.        300     IN      MX      10 domain.net.

;; AUTHORITY SECTION:
domain.net.        145329  IN      NS      Public DNS.
domain.net.        145329  IN      NS      Public DNS.
domain.net.        145329  IN      NS      Public DNS.
domain.net.        145329  IN      NS      Public DNS.

;; ADDITIONAL SECTION:
Public DNS.       147668  IN      A       
Public DNS.       147668  IN      A       
Public DNS.       147668  IN      A       
Public DNS.       147668  IN      A       

;; Query time: 66 msec
;; SERVER: 192.168.0.200#53(192.168.0.200)
;; WHEN: Mon Dec  1 08:09:07 2008
;; MSG SIZE  rcvd: 194

;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33929
;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 4, ADDITIONAL: 4

;; QUESTION SECTION:
;deobfuscate.net.               IN      ANY

;; ANSWER SECTION:
domain.net.        118     IN      MX      10 domain.net.
domain.net.        145147  IN      NS      .
domain.net.        145147  IN      NS      .
domain.net.        145147  IN      NS      .
domain.net.        145147  IN      NS      .

;; AUTHORITY SECTION:
domain.net.        145147  IN      NS      .
domain.net.        145147  IN      NS      .
domain.net.        145147  IN      NS      .
domain.net.        145147  IN      NS      .

;; ADDITIONAL SECTION:
.       147486  IN      A       
.       147486  IN      A       
.       147486  IN      A       
.       147486  IN      A       

;; Query time: 1 msec
;; SERVER: 192.168.0.200#53(192.168.0.200)
;; WHEN: Mon Dec  1 08:12:09 2008
;; MSG SIZE  rcvd: 250

server01.domain.net has address 
Host server01.domain.net not found: 3(NXDOMAIN)

[uxbod]

A and MX records should be pointing at your internal IP for the ZCS server and not the public one.

[SnowPunk98]

You are talking about the internal DNS right not the public one? If so where would I make that change?

[phoenix]

The internal DNS should point to your LAN IP not the external IP, details here: Split DNS - Zimbra :: Wiki

[phoenix]

In addition, your MX record should be the FQDN of your server not the domain name.