My postfix server isn't able to send messages to domains that have the
domain name as the mx record.
Precisely, labramo.com.br is the domain that led me to this problem.

Any hints on what to do to, besides contacting the domain admin for
labramo.com.br?

Thank you,
Aless.

arplabs@gmail.com wrote:
> My postfix server isn't able to send messages to domains that have the
> domain name as the mx record.
> Precisely, labramo.com.br is the domain that led me to this problem.
>
> Any hints on what to do to, besides contacting the domain admin for
> labramo.com.br?
>
> Thank you,
> Aless.

What does it say in the Postfix syslog file? (usually in /var/log/maillog)

Also, can you post the output of "postconf -n" ?

--
Greg

Sorry, I shoud've included those in the intial post.

Here it is:
postconf -n
alias_database = hash:/etc/aliases
alias_maps = $alias_database
bounce_size_limit = 65536
broken_sasl_auth_clients = yes
canonical_maps = hash:/etc/postfix/canonical
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = smtp:127.0.0.1:21883
daemon_directory = /usr/lib/postfix
debug_peer_level = 2
default_destination_concurrency_limit = 10
default_privs = nobody
default_transport = smtp
disable_vrfy_command = yes
header_size_limit = 32768
inet_interfaces = 127.0.0.1, 201.24.110.4
local_destination_concurrency_limit = 2
local_recipient_maps = ldap:ldapvirtual
mail_owner = postfix
mailbox_transport = cyrus
message_size_limit = 32768000
mydestination = $mydomain, $myhostname, localhost.$mydomain,
/etc/postfix/destination, hash:/etc/postfix/destination_domains
mydomain = gsurf.com.br
myhostname = silveira.gsurf.com.br
mynetworks = 201.35.229.219/32, 201.64.77.234/32, 200.247.142.184/32,
201.24.110.0/24, 127.0.0.0/8, 201.24.111.0/24, 201.25.197.0/24
myorigin = /etc/mailname
program_directory = /usr/lib/postfix
queue_directory = /var/spool/postfix
relay_domains = $mydomain, $myhostname, localhost.$mydomain,
/etc/postfix/destination, hash:/etc/postfix/relay_domains
smtpd_banner = $myhostname ESMTP $mail_name (GSurf)
smtpd_recipient_limit = 99
smtpd_recipient_restrictions = permit_mynetworks,
permit_sasl_authenticated, check_relay_domains
smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain = $myhostname
smtpd_sasl_security_options = noanonymous
smtpd_timeout = 180
transport_maps = hash:/etc/postfix/transport
virtual_maps = ldap:ldapvirtual

Log:
May 8 23:10:49 silveira postfix/smtp[6583]: warning: no MX host for
labramo.com.br has a valid A record
May 8 23:10:50 silveira postfix/smtp[6583]: AFABB5FD71:
to=<vendas1@labramo.com.br>, relay=none, delay=20, status=deferred
(Name service error for labramo.com.br: Host not found, try again)

Thank you,
Aless.

> May 8 23:10:49 silveira postfix/smtp[6583]: warning: no MX host for
> labramo.com.br has a valid A record
> May 8 23:10:50 silveira postfix/smtp[6583]: AFABB5FD71:
> to=<vendas1@labramo.com.br>, relay=none, delay=20, status=deferred
> (Name service error for labramo.com.br: Host not found, try again)


It appears to me to be DNS related rather than a Postfix config issue. I don't see anything
out of the ordinary in your configs.

Here is a thread on a similar error message, where the problem is the search path
in /etc/resolv.conf. Maybe it will be of :

http://groups.google.com/group/list....4027449a5dd6a3

--
Greg

Thanks Greg. After some thought, I'm thinking it's a DNS issue too.
I'm gonna call the admin for the site (labramo.com.br) and have him do
it right and get this over with.
Thanks for your time!!

Aless.

arplabs@gmail.com wrote:
> Thanks Greg. After some thought, I'm thinking it's a DNS issue too.
> I'm gonna call the admin for the site (labramo.com.br) and have him do
> it right and get this over with.
> Thanks for your time!!
>
> Aless.

Actually, I meant a problem with your DNS, as labramo.com.br seems to
resolve just fine from here.

For exanple: Do you run Postfix in the "chrooted" mode ? If so, there can be
problems such as you are having with the chrooted copy of /etc/resolv.conf.

Otherwise, what happens when you run the commands:

dig MX labramo.com.br
dig A labramo.com.br


--
Greg