ISP Config - Problem sending emails to some domains

[Erth]

Hi, I have a problem sending emails to some domains that are not the most famous like gmail, hotmail, etc.

Here is my config:

/etc/postfix/main.cf

# See /usr/share/postfix/main.cf.dist for a commented, more complete version


# Debian specific:  Specifying a file name will cause the first
# line of that file to be used as the name.  The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname

smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no

# appending .domain is the MUA's job.
append_dot_mydomain = no

# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h

readme_directory = no

# TLS parameters
smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt
smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key
smtpd_use_tls = yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache

# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.

myhostname = xxxxxx.yyyyyy.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = xxxxxx.yyyyyy.com, localhost.yyyyyy.com, , localhost
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
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_sasl_authenticated_header = yes
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
smtpd_tls_auth_only = yes
smtp_use_tls = yes
smtp_tls_note_starttls_offer = yes
smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
tls_random_source = dev:/dev/urandom
home_mailbox = Maildir/

virtual_maps = hash:/etc/postfix/virtusertable

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

And the error

Feb 29 15:42:30 xxxxxx postfix/local[24414]: 2B5179AE11C: to=<david@zzzzzzzz.com>, relay=local, delay=0.17, delays=0.11/0.04/0/0.03, dsn=5.1.1, status=bounced (unknown user: "david")

I'm trying to send an email from david@jjjjjjjj.es to david@zzzzzzzzz.com

Any idea why say "unknown user: david" ? I can send emails to gmail without problems!

Regards and thanks in advanced!

[till]

It seems as if zzzzzzzz.com is alocal domain on your server according to the errormessage. Have you created zzzzzzzz.com as domain in ispconnfig ot is zzzzzzzz.com in the file /etc/mailname?

[Erth]

zzzzzzzz.com is an email from google apps, but I tried to another domain not hosted in my server like zurich.com and I have the same error...

A not have any idea that happens

[Erth]

This not works yet, any idea? Im going crazy!

I can't send emails to another domain and I can't fix it

Thanks!

[till]

Please post a bigger snippet of the mail log that contains also the lines before the error line. And if you anonymize the log, make sure that you anonymize a email address or domain in all lines with the same chars.

[Erth]

Email from Thunderbird

Mar  1 14:44:29 SERVER postfix/smtpd[22536]: connect from IPHOME.HOMEDOMAIN[IPHOME]
Mar  1 14:44:29 SERVER postfix/smtpd[22536]: setting up TLS connection from IPHOME.HOMEDOMAIN[IPHOME]
Mar  1 14:44:29 SERVER postfix/smtpd[22536]: Anonymous TLS connection established from IPHOME.HOMEDOMAIN[IPHOME]: TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)
Mar  1 14:44:30 SERVER postfix/smtpd[22536]: NOQUEUE: reject: RCPT from IPHOME.HOMEDOMAIN[IPHOME]: 550 5.1.1 <david@DOMAIN_DEST.com>: Recipient address rejected: User unknown in local recipient table; from=<info@DOMAIN_SRC.com> to=<david@DOMAIN_DEST.com> proto=ESMTP helo=<[192.168.1.10]>

Email from Webmail (Roundcube mail)

  1 14:45:30 SERVER postfix/cleanup[22704]: 2B7649AE123: message-id=<00ec01ccf7b1$$b094a3a0$@DOMAIN_SRC.com>
Mar  1 14:45:31 SERVER imapd: LOGIN, user=EMAIL_USER, ip=[::ffff:213.186.56.183], port=[55208], protocol=IMAP
Mar  1 14:45:31 SERVER imapd: LOGOUT, user=EMAIL_USER, ip=[::ffff:213.186.56.183], headers=0, body=0, rcvd=502, sent=274, time=1
Mar  1 14:45:31 SERVER postfix/pickup[18922]: 23DE09AE125: uid=33 from=<info@DOMAIN_SRC.com>
Mar  1 14:45:31 SERVER postfix/cleanup[22803]: 23DE09AE125: message-id=<@www.DOMAIN_DEST.com>
Mar  1 14:45:31 SERVER postfix/qmgr[29739]: 23DE09AE125: from=<info@DOMAIN_SRC.com>, size=555, nrcpt=1 (queue active)
Mar  1 14:45:31 SERVER postfix/local[22705]: 23DE09AE125: to=<david@DOMAIN_DEST.com>, relay=local, delay=0.1, delays=0.06/0/0/0.04, dsn=5.1.1, status=bounced (unknown user: "david")
Mar  1 14:45:31 SERVER postfix/cleanup[22803]: 309789AE126: message-id=<20120301134531.309789AE126@SERVER.SERVER_DOMAIN.com>
Mar  1 14:45:31 SERVER postfix/qmgr[29739]: 309789AE126: from=<>, size=2333, nrcpt=1 (queue active)
Mar  1 14:45:31 SERVER postfix/bounce[22804]: 23DE09AE125: sender non-delivery notification: 309789AE126
Mar  1 14:45:31 SERVER postfix/qmgr[29739]: 23DE09AE125: removed
Mar  1 14:45:31 SERVER postfix/pickup[18922]: 4503F9AE125: uid=10050 from=<EMAIL_USER>
Mar  1 14:45:31 SERVER postfix/cleanup[22803]: 4503F9AE125: message-id=<.4503F9AE125@SERVER.SERVER_DOMAIN.com>
Mar  1 14:45:31 SERVER postfix/local[22705]: 309789AE126: to=<EMAIL_USER@SERVER.SERVER_DOMAIN.com>, orig_to=<info@DOMAIN_SRC.com>, relay=local, delay=0.09, delays=0.01/0/0/0.08, dsn=2.0.0, status=sent (delivered to command: /usr/bin/procmail -f-)
Mar  1 14:45:31 SERVER postfix/qmgr[29739]: 309789AE126: removed
Mar  1 14:45:31 SERVER postfix/qmgr[29739]: 4503F9AE125: from=<EMAIL_USER@SERVER.SERVER_DOMAIN.com>, size=384, nrcpt=1 (queue active)
Mar  1 14:45:31 SERVER postfix/local[22705]: 4503F9AE125: to=<admispconfig@localhost.localdomain>, relay=local, delay=0.05, delays=0.01/0/0/0.04, dsn=2.0.0, status=sent (delivered to command: /usr/bin/procmail -f-)
Mar  1 14:45:31 SERVER postfix/qmgr[29739]: 4503F9AE125: removed

And the email that returns Roundcube

This is the mail system at host SERVER.SERVER_DOMAIN.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 postmaster.

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

                   The mail system

<david@DOMAIN_DEST.com>: unknown user: "david"
Reporting-MTA: dns; SERVER.SERVER_DOMAIN.com
X-Postfix-Queue-ID: 98F089AE125
X-Postfix-Sender: rfc822; info@DOMAIN_SRC.com
Arrival-Date: Thu,  1 Mar 2012 14:57:20 +0100 (CET)

Final-Recipient: rfc822; david@DOMAIN_DEST.com
Action: failed
Status: 5.1.1
Diagnostic-Code: X-Postfix; unknown user: "david"
Return-Path: <info@DOMAIN_SRC.com>
Received: by SERVER.SERVER_DOMAIN.com (Postfix, from userid 33)
	id 98F089AE125; Thu,  1 Mar 2012 14:57:20 +0100 (CET)
To: <david@DOMAIN_DEST.com>
Subject: ........
X-PHP-Originating-Script: 10005:func.inc
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8;
 format=flowed
Content-Transfer-Encoding: 7bit
Date: Thu, 01 Mar 2012 14:57:20 +0100
From: web23_info <info@DOMAIN_SRC.com>
Message-ID: <99dc7a866a63243323368eab3ff266d7@www.DOMAIN_DEST.com>
X-Sender: info@DOMAIN_SRC.com
User-Agent: Roundcube Webmail/0.5.3

.......

DOMAIN_SRC is a domain host in my server and DOMAIN_DEST is a domain with google apps but does not work with anothers domains like Zurich.com.

[falko]

Please check if the MX record of the destination domain points to the correct server.

[Erth]

Originally Posted by falko

Please check if the MX record of the destination domain points to the correct server.

Sorry for the delay.

The destination domains (zurich.com for example) are not hosted in my server.

[falko]

Originally Posted by Erth

The destination domains (zurich.com for example) are not hosted in my server.

So you send to a remote server (not your own one) and get a "user unknown" error? Then that's a problem of the remote server.

[Erth]

Originally Posted by falko

So you send to a remote server (not your own one) and get a "user unknown" error? Then that's a problem of the remote server.

Sure? I can sen to another domains with my gmail account. And the unknown user error is for my login, for example, if I try to send and email from david@localdomain.com to test@zurich.com, the unknow user is "david".

I dont understand why happens... but I think that is a problem of my server config