DNS and Postfix issues

[issya]

Hello, I am trying to setup an e-mail with ISPConfig. All seemed to be working until I say my deferred e-mail for Postfix. I am getting the below error message in my mail.log. Mucho thanks for any help.

Apr 17 12:12:34 www postfix/qmgr[23125]: 22924411365: to=<XXXXXX@juno.com>, relay=none, delay=66558, delays=66482/76/0/0, dsn=4.4.3, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=juno.com type=MX: Host not found, try again)

I used the HOWTO for the perfect server setup on Ubuntu 6.10. Below are some config files for Ubuntu.

I own the domain www.builderbulletins.com. I made the hostname for my Ubuntu box www.builderbulletins.com. I made my MX record www.builderbulletins.com.

My HOSTS file is

127.0.0.1 localhost.localdomain localhost
192.168.2.1 www.builderbulletins.com www

# 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


My resolv.conf is (Which are my ISP's name servers)

nameserver 216.199.XXX
nameserver 216.199.XXX.XXX

Here is my nsswitch.conf

passwd: compat
group: compat
shadow: compat

hosts: files dns
networks: files

protocols: db files
services: db files
ethers: db files
rpc: db files

netgroup: nis


Here is my main.cf (at least the part that matters)


myhostname = www.builderbulletins.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = builderbulletins.com
#mydestination = $myhostname, localhost.$mydomain, localhost
relayhost =
mynetworks = 127.0.0.0/8 192.168.2.0/24
mailbox_command =
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all
smtpd_sasl_local_domain =
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject _unauth_destination
tls_random_source = dev:/dev/urandom
home_mailbox = Maildir/

virtual_maps = hash:/etc/postfix/virtusertable

mydestination = /etc/postfix/local-host-names






Dig works about half the time also.

Here is my digg A output

; <<>> DiG 9.3.2 <<>> A builderbulletins.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32659
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

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

;; ANSWER SECTION:
builderbulletins.com. 2401 IN A 216.199.187.234

;; AUTHORITY SECTION:
builderbulletins.com. 512 IN NS PARK15.SECURESERVER.NET.
builderbulletins.com. 512 IN NS PARK16.SECURESERVER.NET.

;; ADDITIONAL SECTION:
PARK15.SECURESERVER.NET. 229 IN A 64.202.165.118
PARK16.SECURESERVER.NET. 229 IN A 208.109.80.43

;; Query time: 75 msec
;; SERVER: 216.199.XXX.XXX#53(216.199.XXX.XXX)
;; WHEN: Tue Apr 17 12:17:24 2007
;; MSG SIZE rcvd: 144


Here is my dig MX output (well it is not working atm)
DNSStuff.com says...

builderbulletins.com. MX IN 3600 www.builderbulletins.com. [Preference = 10]

[Hans]

I would try this:

Change myorigin= builderbulletins.com within myorigin = /etc/mailname

The file /etc/mailname should contain your fqdn like host.builderbulletins.com

If the output of hostname -f is server1.builderbulletins.com put server1 as the host.

Change smtpd_sasl_local_domain = within smtpd_sasl_local_domain = $myhostname

What is your output of hostname -f anyway?

[issya]

Thanks for the reply. My host is www. I made the suggested changes and rebooted and it is still giving the same error message.

hostname -f is www.builderbulletins.com. Is this wrong?

[Hans]

www should be the name of your physical machine (your server).
What is within your file /etc/hosts ?

[issya]

That is what I named it. Below is my /etc/hosts.

127.0.0.1 localhost.localdomain localhost
192.168.2.1 www.builderbulletins.com www

[Hans]

In principle you did it right, but i would prefer a different name for your host then www, for instance server1.

Is the output of the command: hostname the same as for the command hostname-f ?

Do you see any errors whitin your mail log files?

[issya]

Hostname and hostname -f produce the same output. I can change it to server1 but would that mean my MX records change also? The error I have been getting on every e-mail sent has been....


Apr 17 12:12:34 www postfix/qmgr[23125]: 22924411365: to=<XXXXXX@juno.com>, relay=none, delay=66558, delays=66482/76/0/0, dsn=4.4.3, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=juno.com type=MX: Host not found, try again)

[Hans]

This looks as if your system cannot resolve domains. What is within /etc/resolv.conf? Are there any DNS servers in it?

[issya]

My resolv.conf is (Which are my ISP's name servers)

nameserver 216.199.XXX
nameserver 216.199.XXX.XXX

[issya]

Thank you for all of the great help. I ended up naming the box server1.builderbulletin.com and changed it all in the corresponding Postfix config files. I also put my nameserver to 127.0.0.1 in Resolv.conf and the resolved all of the DNS. I would assume because of bind.

Thanks again, I am glad there are people here to help.