Hello,
my server is set up correctly since several months but as I didn't use E-Mail on that specific server I haven't noticed that it wasn't working.
I can't receive any email from outside.
It's all being rejected by postfix without giving me a true reason.
In the Delivery Failure Notification Mail it says:
Code:
Diagnostic code: smtp;554 5.7.1 <is-a-catch-all@thematrix-reloaded.de>: Relay access denied
 
which is pretty much the same as in the mail.log where it says:
Code:
Jun 10 02:01:30 xenzilla postfix/smtpd[9362]: NOQUEUE: reject: RCPT from mta-1.ms.rz.RWTH-Aachen.DE[134.130.7.72]: 554 5.7.1 <is-a-catch-all@thematrix-reloaded.de>: Relay access denied; from=<my.name@rwth-aachen.de> to=<is-a-catch-all@thematrix-reloaded.de> proto=ESMTP helo=<mta-1.ms.rz.rwth-aachen.de>
 
That's way too general to get any good info out of it. All I found in the Internet and especially in this forum was related to SENDING mail and problems with the Allowed Hosts in postfix main.cf resp. /etc/hosts.
But I've double if not triple checked those problems.
main.cf
Code:
#
# ispCP Ï (OMEGA) a Virtual Hosting Control System
#
# @copyright    2001-2006 by moleSoftware GmbH
# @copyright    2006-2008 by ispCP | http://isp-control.net
# @version              SVN: $Id$
# @link                 http://isp-control.net
# @author               ispCP Team
#
# @license
#   This program is free software; you can redistribute it and/or modify it under
#   the terms of the MPL General Public License as published by the Free Software
#   Foundation; either version 1.1 of the License, or (at your option) any later
#   version.
#   You should have received a copy of the MPL Mozilla Public License along with
#   this program; if not, write to the Open Source Initiative (OSI)
#   http://opensource.org | osi@opensource.org
#
################################################################################
# Postfix directory settings; These are critical for normal Postfix MTA functionallity
command_directory            = /usr/sbin
daemon_directory             = /usr/lib/postfix
# Some common configuration parameters
inet_interfaces              = all
mynetworks_style             = host
mynetworks                   = 127.0.0.0/8
myhostname                   = xenzilla.de
mydomain                     = xenzilla.de.local
myorigin                     = $myhostname
smtpd_banner                 = $myhostname ESMTP ispCP 1.0.0 OMEGA Managed
setgid_group                 = postdrop
# Receiving messages parameters
mydestination                = $mydomain
append_dot_mydomain          = no
append_at_myorigin           = yes
local_transport              = local
virtual_transport            = virtual
transport_maps               = hash:/etc/postfix/ispcp/transport
alias_maps                   = hash:/etc/aliases
alias_database               = hash:/etc/aliases
# Delivering local messages parameters
mail_spool_directory         = /var/mail
# Mailboxquota
# => 0 for unlimited
# => 104857600 for 100 MB
mailbox_size_limit           = 0
mailbox_command              = procmail -a "$EXTENSION"
# Message size limit
# => 0 for unlimited
# => 104857600 for 100 MB
message_size_limit           = 0
biff                         = no
recipient_delimiter          = +
local_destination_recipient_limit = 1
local_recipient_maps         = unix:passwd.byname $alias_database
# ispCP Autoresponder parameters
ispcp-arpl_destination_recipient_limit = 1
# Delivering virtual messages parameters
virtual_mailbox_base         = /var/mail/virtual
virtual_mailbox_limit        = 0
virtual_mailbox_domains      = hash:/etc/postfix/ispcp/domains
virtual_mailbox_maps         = hash:/etc/postfix/ispcp/mailboxes
virtual_alias_maps           = hash:/etc/postfix/ispcp/aliases
virtual_minimum_uid          = 1001
virtual_uid_maps             = static:1001
virtual_gid_maps             = static:8
# SASL paramters
smtpd_sasl_auth_enable       = yes
smtpd_sasl_security_options  = noanonymous
smtpd_sasl_local_domain      =
broken_sasl_auth_clients     = yes
smtpd_helo_required          = yes
smtpd_helo_restrictions      = permit_mynetworks,
                               permit_sasl_authenticated,
                               reject_invalid_helo_hostname,
                               reject_non_fqdn_helo_hostname
smtpd_sender_restrictions    = reject_non_fqdn_sender,
                               reject_unknown_sender_domain,
                               permit_mynetworks,
                               permit_sasl_authenticated
smtpd_recipient_restrictions = reject_non_fqdn_recipient,
                               reject_unknown_recipient_domain,
                               permit_mynetworks,
                               permit_sasl_authenticated,
                               reject_unauth_destination,
                               reject_unlisted_recipient,
                               check_policy_service inet:127.0.0.1:12525,
                               check_policy_service inet:127.0.0.1:60000,
                               permit
smtpd_data_restrictions      = reject_multi_recipient_bounce,
                               reject_unauth_pipelining
# TLS parameters; activate, if avaible/used
#smtpd_use_tls               = yes
#smtpd_tls_loglevel          = 2
#smtpd_tls_cert_file         = /etc/postfix/cert.pem
#smtpd_tls_key_file          = /etc/postfix/privkey.pem
#smtpd_tls_auth_only         = no
#smtpd_tls_received_header   = yes
# AMaViS parameters; activate, if available/used
#content_filter               = amavis:[127.0.0.1]:10024
# Quota support; activate, if available/used
#virtual_create_maildirsize     = yes
#virtual_mailbox_extended       = yes
#virtual_mailbox_limit_maps     = mysql:/etc/postfix/mysql_virtual_mailbox_limit_maps.cf
#virtual_mailbox_limit_override = yes
#virtual_maildir_limit_message  = "The user you're trying to reach is over mailbox quota."
#virtual_overquota_bounce       = yes
 
mail.log (restarted postfix, sent 1 mail and then cut out that part of the logfile)
Code:
Jun 10 02:34:06 xenzilla postfix/master[9598]: daemon started -- version 2.5.5, configuration /etc/postfix
Jun 10 02:35:03 xenzilla postfix/smtpd[9606]: connect from mta-2.ms.rz.RWTH-Aachen.DE[134.130.7.73]
Jun 10 02:35:03 xenzilla postfix/smtpd[9606]: NOQUEUE: reject: RCPT from mta-2.ms.rz.RWTH-Aachen.DE[134.130.7.73]: 554 5.7.1 <is-a-catch-all@thematrix-reloaded.de>: Relay access denied; from=<my.name@rwth-aachen.de> to=<is-a-catch-all@thematrix-reloaded.de> proto=ESMTP helo=<mta-2.ms.rz.rwth-aachen.de>
Jun 10 02:35:03 xenzilla postfix/smtpd[9606]: disconnect from mta-2.ms.rz.RWTH-Aachen.DE[134.130.7.73]
 
I censored the mail adresses a bit but on the thematrix-reloaded.de domain everything in front of the @ has to work.