%general-entities; ]> $LastChangedBy$ $Date$ Postfix The Postfix package contains a Mail Transport Agent (MTA). This is useful for sending email to other users of your host machine. It can also be configured to be a central mail server for your domain, a mail relay agent or simply a mail delivery agent to your local Internet Service Provider (ISP). Download (HTTP): Download (FTP): Download size: &postfix-size; Estimated disk space required: &postfix-buildsize; Estimated build time: &postfix-time; , , , , and The Postfix source tree does not contain a configure script, rather the makefile in the top-level directory contains a makefiles target that regenerates all the other makefiles in the build tree. If you wish to use additional software such as a database back-end for virtual users, or TLS/SSL authentication, you'll need to regenerate the makefiles using one or more of the appropriate CCARGS and AUXLIBS settings listed below. Here is an example that combines the TLS/SSL and Cyrus-SASL arguments: make makefiles \ CCARGS="-DHAS_SSL -DUSE_SASL_AUTH -I/usr/include/openssl -I/usr/include/sasl" \ AUXLIBS="-L/usr/lib -R/usr/lib -lssl -lcrypto -lsasl2" To use SSL/TLS authentication with Postfix, you'll first need to apply a patch availible from . Unzip the patch tarball, and apply with the following commands: patch -p1 < ../pfixtls-0.8.18-2.1.3-0.9.7d/pfixtls.diff You will need to pass the following values to the make makefiles command: CCARGS="-DHAS_SSL -I/usr/include/openssl" \ AUXLIBS="-L/usr/lib -lssl -lcrypto" To use SSL or TLS you will also need . To use Cyrus-SASL with Postfix, use the following arguments: CCARGS="-DUSE_SASL_AUTH -I/usr/include/sasl" \ AUXLIBS="-L/usr/lib -R/usr/lib -lsasl2" To use OpenLDAP with Postfix, use the following arguments: CCARGS="-I/usr/include -DHAS_LDAP" \ AUXLIBS="-L/usr/lib -lldap -llber" To use MySQL with Postfix, use the following arguments: CCARGS="-DHAS_MYSQL -I/usr/include/mysql" \ AUXLIBS="-L/usr/lib -lmysqlclient -lz -lm" To use PostgreSQL with Postfix, use the following arguments: CCARGS="-DHAS_PGSQL -I/usr/include/postgresql" \ AUXLIBS="-L/usr/lib -lpq -lz -lm" Before you compile the program, you need to create users and groups that will be expected to be in place when the install script executes. Add the users and groups with the following commands: groupadd postfix && groupadd postdrop && groupadd -g 65534 nogroup && useradd -c postfix -d /dev/null -g postfix -s /bin/false postfix && useradd -c nobody -d /home -g nogroup -s /bin/bash -u 65534 nobody && chown postfix:postfix /var/mail Install Postfix by running the following commands: make && sh postfix-install daemon_directory=/usr/sbin \ manpage_directory=/usr/share/man \ sample_directory=/usr/share/doc/postfix \ -non-interactive The final installation step is to install the program's documentation with the following commands: install -d /usr/share/doc/postfix && cp -rf html/* /usr/share/doc/postfix sh postfix-install ... -non-interactive : This keeps the install script from asking any questions, thereby accepting default destination directories in all but the three cases explicitly mentioned. make makefiles : This command rebuilds the makefiles throughout the source tree to use the options contained in the CCARGS and AUXLIBS variables. /etc/aliases, /etc/postfix/main.cf and /etc/postfix/master.cf /etc/aliases /etc/postfix/* cat >> /etc/aliases << "EOF" # Begin /etc/aliases MAILER-DAEMON: postmaster postmaster: root root: LOGIN # End /etc/aliases EOF To protect an existing /etc/aliases file, the above command appends these aliases to it if it exists. This file should be checked and duplicate aliases removed, if present. The /etc/aliases file that was just created or appended, the main.cf and the master.cf must be personalized for your system. The aliases file needs your non-root login identity so mail addressed to root can be forwarded to you at the user level. The main.cf file needs your fully qualified hostname. All of these edits can be done with sed commands entered into the console with appropriate substitutions of your non-root login name for [user] and your fully qualified hostname for [localhost.localdomain]. You will find the main.cf file is self documenting, so load it into your editor to make the changes you need for your situation. sed -i "s/LOGIN/[user]/" /etc/aliases && sed -i "s/#myhostname = host.domain.tld/myhostname = \ [localhost.localdomain]/" /etc/postfix/main.cf && /usr/bin/newaliases && /usr/sbin/postfix start To automate the running of Postfix at startup, install the /etc/rc.d/init.d/postfix init script included in the package. postfix make install-postfix Installed Programs Installed Directories bounce, cleanup, error, flush, lmtp, local, mailq, master, newaliases, nqmgr, oqmgr, pickup, pipe, postalias, postcat, postconf, postdrop, postfix, postkick, postlock, postlog, postmap, postqueue, postsuper, proxymap, qmgr, qmqpd, sendmail, showq, smtp, smtpd, spawn, trivial-rewrite, verify, and virtual /etc/postfix and /usr/share/doc/postfix Short Descriptions bounce A daemon that maintains per-message log files with non-delivery status information. bounce cleanup A daemon that processes inbound mail, inserts it into the incoming mail queue, and informs the queue manager of its arrival. cleanup error A deamon that processes non-delivery requests from the queue manager. error flush A daemon that maintains a record of deferred mail by destination. flush lmtp A daemon that processes message delivery requests from the queue manager. lmtp local A daemon that processes delivery requests from the queue manager to deliver mail to local recipients. local mailq A symlink to sendmail. mailq master The resident process that runs Postfix daemons on demand. master newaliases A symlink to sendmail. newaliases nqmgr A daemon that awaits the arrival of incoming mail and arranges for its delivery. nqmgr oqmgr The old style queue manager. This will be removed soon. oqmgr pickup A daemon that waits for hints that new mail has been dropped into the maildrop directory, and feeds it into the cleanup daemon. pickup pipe A daemon that processes requests from the queue manager to deliver messages to external commands. pipe postalias Creates or queries one or more Postfix alias databases, or updates an existing one. postalias postcat Prints the contents of the named files in human readable format. postcat postconf Displays or changes the value of Postfix configuration parameters. postconf postdrop Creates a file in the maildrop directory and copies it's standard input to the file. postdrop postfix Controls the operation of the Postfix mail system. postfix postkick Sends requests to the specified service over a local transport channel. postkick postlock Locks a mail folder for exclusive use, and executes commands passed to it. postlock postlog A Postfix-compatible logging interface for use in, for example, shell scripts. postlog postmap Creates or queries one or more Postfix lookup tables, or updates an existing one. postmap postqueue The Postfix user interface for queue management. postqueue postsuper The Postfix user interface for superuser queue management. postsuper proxymap Provides read-only table lookup services to other Postfix processes. proxymap qmgr A daemon that awaits the arrival of incoming mail and arranges for its delivery. qmgr qmqpd A daemon that receives one message per connection, and pipes it through the cleanup daemon, and places it into the incoming queue. qmqpd sendmail The Postfix to Sendmail compatibility interface. sendmail showq A daemon that reports the Postfix mail queue status. showq smtp Looks up a list of mail exchanger addresses for the destination host, sorts the list by preference, and connects to each listed address until it finds a server that responds. smtp smtpd Accepts network connection requests and performs zero or more SMTP transactions per connection. smtpd spawn Listens on a port as specified in the Postfix master.cf file and spawns an external command whenever a connection is established. spawn trivial-rewrite A daemon that rewrites addresses to standard form. trivial-rewrite verify Maintains a record of what recipient addresses are known to be deliverable or undeliverable. verify virtual Delivers mail to virtual user's mail directories. virtual