Install Postfix

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By admin

Install Postfix :

# apt-get install postfix-mysql

Reading package lists… Done
Building dependency tree
Reading state information… Done
The following NEW packages will be installed:
postfix-mysql
0 upgraded, 1 newly installed, 0 to remove and 18 not upgraded.
Need to get 43.4kB of archives.
After this operation, 111kB of additional disk space will be used.
Get:1 http://us.archive.ubuntu.com jaunty/main postfix-mysql 2.5.5-1.1 [43.4kB]
Fetched 43.4kB in 4s (9540B/s)
Selecting previously deselected package postfix-mysql.
(Reading database … 23112 files and directories currently installed.)
Unpacking postfix-mysql (from …/postfix-mysql_2.5.5-1.1_i386.deb) …
Setting up postfix-mysql (2.5.5-1.1) …
Adding mysql map entry to /etc/postfix/dynamicmaps.cf

Configuration start :

1. Integrate Quota Patch

Install some helpfull program :

#apt-get install build-essential dpkg-dev fakeroot debhelper libdb-dev libldap2-dev  libpcre3-dev libmysqlclient15-dev  libssl-dev libsasl2-dev libpq-dev libcdb-dev hardening-wrapper

# cd /usr/src
# apt-get source postfix

# wget http://vda.sourceforge.net/VDA/postfix-2.5.5-vda-ng.patch.gz

# gunzip postfix-2.5.5-vda-ng.patch.gz

# cd postfix-2.5.5
# patch -p1 < ../postfix-2.5.5-vda-ng.patch
patching file README_FILES/VDA_README
patching file src/global/mail_params.h
patching file src/util/file_limit.c
patching file src/virtual/mailbox.c
patching file src/virtual/maildir.c
patching file src/virtual/virtual.c
patching file src/virtual/virtual.h
root@smsgw:/usr/src/postfix-2.5.5#

2. Rebuilding .deb file

#dpkg-buildpackage

#cd ..

#ls -l
total 5868
drwxr-xr-x 19 root root    4096 2009-03-29 12:21 postfix-2.5.5
-rw-r–r–  1 root src   236237 2009-03-29 12:17 postfix_2.5.5-1.1.diff.gz
-rw-r–r–  1 root src     1178 2009-03-29 12:17 postfix_2.5.5-1.1.dsc
-rw-r–r–  1 root src     3695 2009-03-29 12:22 postfix_2.5.5-1.1_i386.changes
-rw-r–r–  1 root src  1224324 2009-03-29 12:22 postfix_2.5.5-1.1_i386.deb
-rw-r–r–  1 root src  3157877 2008-09-03 11:04 postfix_2.5.5.orig.tar.gz
-rw-r–r–  1 root src    58389 2008-09-05 23:02 postfix-2.5.5-vda-ng.patch
-rw-r–r–  1 root src    41522 2009-03-29 12:22 postfix-cdb_2.5.5-1.1_i386.deb
-rw-r–r–  1 root src   141224 2009-03-29 12:22 postfix-dev_2.5.5-1.1_all.deb
-rw-r–r–  1 root src   914880 2009-03-29 12:22 postfix-doc_2.5.5-1.1_all.deb
-rw-r–r–  1 root src    48756 2009-03-29 12:22 postfix-ldap_2.5.5-1.1_i386.deb
-rw-r–r–  1 root src    43452 2009-03-29 12:22 postfix-mysql_2.5.5-1.1_i386.deb
-rw-r–r–  1 root src    43372 2009-03-29 12:22 postfix-pcre_2.5.5-1.1_i386.deb
-rw-r–r–  1 root src    43532 2009-03-29 12:22 postfix-pgsql_2.5.5-1.1_i386.deb

3. Install new postfix with patch applied

# dpkg -i postfix_2.5.5-1.1_i386.deb

# dpkg -i postfix-mysql_2.5.5-1.1_i386.deb

Create and secure the SMTP SSL certificate:

# mkdir -p /etc/ssl/postfix

# cd /etc/ssl/postfix/

#openssl req -new -x509 -nodes -out smtpd.pem -keyout smtpd.pem -days 3650

# chmod 640 /etc/ssl/postfix/smtpd.pem

# chgrp -R postfix /etc/ssl/postfix

Edit /etc/postfix/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

readme_directory = no

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

myhostname = mail.digitalfusi.com

mydomain = digitalfusi.com

alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
mydestination = smsgw, localhost.localdomain, , localhost
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
home_mailbox = Maildir/

#SASL stuff
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions = reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
smtpd_sender_restrictions =
permit_mynetworks,
permit_sasl_authenticated,
reject_non_fqdn_hostname,
reject_non_fqdn_sender,
reject_non_fqdn_recipient,
reject_unauth_destination,
reject_unauth_pipelining,
reject_invalid_hostname,
reject_rbl_client list.dsbl.org,
reject_rbl_client bl.spamcop.net,
reject_rbl_client sbl-xbl.spamhaus.org
smtpd_sasl_auth_enable = yes
smtpd_sasl_authenticated_header = yes
smtpd_sasl_local_domain = $myhostname
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/dovecot-auth

# MySQL Configuration
#
virtual_alias_maps = proxy:mysql:/etc/postfix/mysql_virtual_alias_maps.cf
virtual_gid_maps = static:125
virtual_mailbox_base = /usr/local/virtual
virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql_virtual_domains_maps.cf
virtual_mailbox_limit = 51200000
virtual_mailbox_maps = proxy:mysql:/etc/postfix/mysql_virtual_mailbox_maps.cf
virtual_minimum_uid = 125
virtual_transport = virtual
virtual_uid_maps = static:125

# TLS stuff

# TLS parameters
smtpd_tls_cert_file = /etc/ssl/certs/ssl-mail.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-mail.key
smtpd_tls_CAfile = /etc/ssl/postfix/smtpd.pem
smtpd_use_tls = yes
smtpd_tls_loglevel = 0
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s

smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache

mailbox_command = /usr/lib/dovecot/deliver -c /etc/dovecot/dovecot-postfix.conf -n -m “${EXTENSION}”

#smtpd_tls_auth_only = yes
tls_random_source = dev:/dev/urandom

# Quota support
#
virtual_create_maildirsize = yes
virtual_mailbox_extended = yes
virtual_mailbox_limit_maps = proxy:mysql:/etc/postfix/mysql_virtual_mailbox_limit_maps.cf
proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps
$virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains
$relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps
$recipient_canonical_maps $relocated_maps $transport_maps $mynetworks
$virtual_mailbox_limit_maps
virtual_mailbox_limit_override = yes
virtual_maildir_limit_message = Sorry, this user has overdrawn their diskspace quota. Please try again later.
virtual_overquota_bounce = yes

mydestination = localhost.$mydomain, localhost

relay_domains = proxy:mysql:/etc/postfix/mysql_relay_domains_maps.cf

Edit /etc/postfix/master.cf file:
Find and edit the RED TEXT.

…
smtps inet n – n – – smtpd
-o smtpd_tls_wrappermode=yes
-o smtpd_sasl_auth_enable=yes
-o smtpd_client_restrictions=permit_sasl_authenticated,reject
…

Create and edit /etc/postfix/mysql_virtual_alias_maps.cf file:

user = postfix
password = postfix_sql_password
hosts = localhost
dbname = postfix
query = SELECT goto FROM alias WHERE address=’%s’ AND active = ‘1‘

Create and edit /etc/postfix/mysql_virtual_domains_maps.cf file:

user = postfix
password = postfix_sql_password
hosts = localhost
dbname = postfix
query = SELECT domain FROM domain WHERE domain=’%s’ and backupmx = ‘0‘ and active = ‘1‘

Create and edit /etc/postfix/mysql_virtual_mailbox_maps.cf file:

user = postfix password = postfix_sql_password hosts = localhost dbname = postfix query = SELECT maildir FROM mailbox WHERE username=’%s’ AND active = ‘1‘

Create and edit /etc/postfix/mysql_virtual_mailbox_limit_maps.cf file:

user = postfix
password = postfix_sql_password
hosts = localhost
dbname = postfix
query = SELECT quota FROM mailbox WHERE username=’%s’

Create and edit /etc/postfix/mysql_relay_domains_maps.cf file:

user = postfix
password = postfix_sql_password
hosts = localhost
dbname = postfix
query = SELECT domain FROM domain WHERE domain=’%s’ and backupmx = ‘1‘

Secure Postfix’s MySQL files:

#chmod 640 /etc/postfix/mysql_*
#chgrp postfix /etc/postfix/mysql_*

Update the transport map database:

#touch /etc/postfix/transport

#postmap /etc/postfix/transport

Edit /etc/aliases file:

Change “root” to an email address you want system messages to be mailed to:
root:alamster@gmail.com
postmaster:    root
clamav: root

Create aliases.db file:

#/usr/bin/newaliases

Create our virtual mail directories:

#mkdir /usr/local/virtual
#chown -R postfix:postfix /usr/local/virtual
#chmod -R 700 /usr/local/virtual

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