Configuring Postfix for Multiple Domains

[Karl-Heinz Schulz]

I made the changes but none of the email were delivered.
All MX records pint to mail.khschulz-lab.com

This is my main.cf file

# 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

# 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:${queue_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${queue_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 = mail-khschulz-lab.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
#mydestination = localhost.localdomain, localhost, mail.khschulz-lab.com
mydestination = $myhostname, localhost.$mydomain, khschulz-lab.com


relayhost =  
mynetworks = 127.0.0.0/8, 
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
smtpd_tls_auth_only = no
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/
myorigin = /etc/mailname

-----Original Message-----
From: ubuntu-users-bounces at lists.ubuntu.com
[mailto:ubuntu-users-bounces at lists.ubuntu.com] On Behalf Of Paul Sladen
Sent: Saturday, September 02, 2006 9:27 PM
To: Ubuntu user technical support, not for general discussions
Subject: Re: Configuring Postfix for Multiple Domains

On Sat, 2 Sep 2006, Karl-Heinz Schulz wrote:

Hello Karl-Heinz,

> How can I configure Postfix to allow me the use of several domains 
> using one IP

The secret is a line similiar to:

  virtual_maps = hash:/etc/postfix/virtual

in the '/etc/postfix/main.cf' configuration.  The '/etc/postfix/virtual'
file contains lines like:

  domain1.com           domain1.com
  emaila at domain1.com    foo at this.machine.com
  emailb at domain1.com    bar at this.machine.com
  emailc at domain1.com    fred at flintstones.org

  domain2.net           domain2.net
  emaila at domain2.net    moo at this.machine.com
  @domain2.net          spam at somewhere.else.com

after being changed, the 'hash' version (binary representation) must be
updated by running:

  sudo postmap /etc/postfix/virtual

Hope that helps,

	-Paul
--
High on a tall bridge, surrounded by noisy lorries.  Nottingham, GB


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