Problem in receiving email

[Joe Ng]

Hi All,

I have setup the Zimbra Collaboration Suite 3.1 in Fedora3 first time.
When I test email function, I cannot receive any email from outside.

I got this return message:
----------------------------------------------------------------------
This is the Postfix program at host zimbra.permanent.serveftp.com.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The Postfix program

: Host or domain name not found. Name service
error for name=zimbra.permanent.serveftp.com type=A: Host not found

Final-Recipient: rfc822; testing@permanent.serveftp.com
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix; Host or domain name not found. Name service error
for name=zimbra.permanent.serveftp.com type=A: Host not found
-----------------------------------------------------------------------

I have checked all the service is started.
Should I do any other configure for the postfix.

Thank you

[phoenix]

The Postfix program

: Host or domain name not found. Name service
error for name=zimbra.permanent.serveftp.com type=A: Host not found

That's the clue, zimbra can't find your server. Do you have a DNS server set-up locally? Have you also setup your /etc/hosts file correctly? Are you using DNS lookups in the Admin GUI?

[Joe Ng]

The domain is registered in no-ip.com
So I do not setup the DNS in local server
I must setup the DNS ??


I already modify the /etc/hosts file
192.168.1.10 zimbra.permanent.serveftp zimbra

[phoenix]

Your DNS records are setup incorrectly, in fact your domain name doesn't even show in any DNS records. Go to pingability and try your DNS resolution. You need to set the DNS records correctly.

[Joe Ng]

I have changed the domain to permanent.serveftp.com

I can received email when the "Enable DNS lookups" is disable but I cannot send out email

On the other hand, when I enable the DNS lookups, I can send mail but cannot receive email.

What is the problem? Because of local DNS setting has some problems ?

[phoenix]

Do you have a router installed? Are you forwarding port 25 to your zimbra server? If I telnet to your domain name on port 25 I get a connection refused. that's usually caused by firewall/router problem or zimbra isn't running. Also, your MX record should point to the FQDN of the server that zimbra is running on.

[Joe Ng]

The server is located at DMZ so port 25 is not blocked

the mx record is using "permanent.serveftp.com"

After checking, when the server receive email, all the emails are hold in the
"Mail Queue -> Deferred"