/* $Id: INSTALL 1606 2005-02-23 15:46:03Z paul $ (c) 2000-2004 IC&S, The Netherlands (c) 2004-2006 NFG Net Facilities Group BV, The Netherlands */ DBMAIL installation =================== This file describes the installation of DBMail. To read about extra features in dbmail you should consult the EXTRAS file. Remember, DBmail is easy to install, as long as you exactly follow these instructions. What do you need? - a working mysql (> 4.0.14) or postgresql installation - a working smtp server (Postfix, Exim, QMail or Sendmail) - the DBMail source (www.dbmail.org) - GNU Make. On Linux systems, your standard 'make' program is GNU Make. On *BSD systems, make sure you install and use 'gmake'. - development files (libs, scripts and include files) for your database server. These will probably be provided by separate packages. 1. Setup a database Currently, DBMail supports both MySQL and PostgreSQL for mailstorage. MySQL is supported from version 4.0.14 upwards. Earlier versions of MySQL lack some SQL features that are needed for DBMail, like support for the INSERT...SELECT statement. Mysql setup ----------- Note: Since some DBMail tables can get VERY large (depending on your mailusage) we advise using InnoDB as database storage backend. First you'll need to create the DBMail database in MYSQL. You can do this by issueing the following command. This step is only necessary when you do not have a database for DBMail yet. Note that you will be prompted for the MySQL root password. mysqladmin create dbmail -u root -p This creates a database with the name "dbmail". Now you have to give a non-root user access to this database. Start the MySQL command-line client as root: mysql -u root -p and enter the following command: GRANT ALL ON dbmail.* to dbmail@localhost identified by '' Where should be replaced with the password you want for the dbmail user. After this step, the database is ready to be used by the dbmail user. The next step is the creation of the database tables used by DBMail. Log out of the MySQL client and run the following command from the command line. You will have to enter the password you set in the previous step. mysql -u dbmail dbmail -p < sql/mysql/create_tables_innoDB.mysql If you cannot use InnoDB, replace creates_table_innoDB.mysql by create_tables.mysql. This is not recommended though. In future versions, DBMail will only support MySQL with transaction support, which is only given by InnoDB at the moment. After this, the DBMAIL tables will have been created and we can go on to the compilation and installation of DBMail itself. Postgresql setup ---------------- First you need to create the postgresql user dbmail is going to use. This is done by. Note that this command can only be performed by user postgres or another PostgreSQL user with the privileges to create users and and databases. createuser -U postgres dbmail Off course you can use an other username than dbmail, simply replace it. You can set a password for the user by doing a: ALTER USER dbmail WITH PASSWORD ''; In a postgresql console, with replaced by the actual password you want to use. After doing this you should create the database for dbmail: createdb -U dbmail dbmail The first dbmail is the user you just created, the second the name of the database. Of course you can use an other databasename. After setting up the user and database it's time to create the tables, do a: psql -U dbmail dbmail < sql/postgresql/create_tables.pgsql Don't forget to start postgresql with the -i option, so it accepts TCP/IP connections. 2. Set the database settings Copy the dbmail.conf file to /etc Edit the dbmail.conf file and set everything in there to your likeings. Make sure to set your database name, user and host are configured in dbmail.conf. Other options in the configuration file are documented there. 3. Run configure & make Run the configure script. This script uses pg_config or mysql_config (depending on --with-mysql or --with-pgsql) to detect where the libraries and include files for these databases are. e.g. when working with PostgreSQL, this is the configure command: ./configure --with-pgsql After running configure, 'make all' will build the executables. Running 'make install' will install the executables in /usr/local/sbin 4. Create users in the dbmail system Next you will need to create some users into the dbmail mailing sytem. Currently this can be done in two ways. One way is using the dbmail-users utility. The other way is doing it in the database itself. To do it using the dbmail-users utility and do the following: dbmail-users -a -w -g \ -m [-s aliases] clientid can be left 0 (this is if you want certain mailadministrators administer specific groups of mailusers). maxmail is the maximum number of bytes this user may have in his/her mailboxes. 0 is unlimited. Add K or M for kilobytes and megabytes. Aliases are a number of aliases for this user. @domain are domain aliases. A user always needs to have at least one alias to receive mail, unless the users username is something like foo@bar.org, where bar.org is a domain the mailserver deliveres to. example: ./dbmail-users -a john -w secret -g 0 -m 25M\ -s john@dude.org john@dude.net @net.com This will create a user john, with a password secret. It will set john's maillimit 25 Mb and all mail for john@dude.org, john@dude.net and @net.com will be sent to john. The @net.com is a fallback alias. This means that all mail that cannot be delivered to an existing alias for a @net.com address will sent to john. 5. Configure your MTA There are two ways to connect your MTA to DBMail. The MTA can start a dbmail-smtp process and pipe SMTP commands and messages to it, or it can use lmtp (Local Mail Transport Protocol) to deliver via dbmail-lmtpd. LMTP is the preferred solution because it offers more robust error handling and because it is a daemon, high traffic servers will have reduced delays which would be incurred starting up a dbmail-smtp process for each message. The specifics of delivering to DBMail from your MTA can be found in the INSTALL. files. Currently there is documentation for Postfix and Exim. If you use a different kind of mta that we do not have documentation for: The dbmail injector program, dbmail-smtp, can receive information in two ways. Either through raw mail (for example, delivered by procmail) using the -n option or from a MTA with recipients in the commandline using the -d option. Be carefull, the -n option is not fully tested and may behave unexected. If possible use the -d option. Setup for LMTP should be straightforward if your MTA supports it. 6. Setting up the maintenance run The dbmail daemons and the smtp injector itself will never actually delete mail from the database. The only program that will do this is the dbmail-util program. This program will also check the integrity of the dbmail database and, if nescessary, fix it. The dbmail-util program will first delete all messages that are set for final deletion. After that it will set all messages that have the delete status set to status final deletion. This way dbmail always has a backup based upon the interval difference between maintenance jobs. We recommend running the dbmail-util program in a daily interval from cron: 0 3 * * * /usr/local/sbin/dbmail-util -cturpd -l 24h -qq 7. Starting the servers If you want users to be able to retrieve email via IMAP or POP3, run dbmail-imapd and/or dbmail-pop3d. If you are delivering email via LMTP, run dbmail-lmtpd (you should start LMTP before your MTA!). 8. Problems -------- For problems you can subscribe to the dbmail mailinglist: http://mailman.fastxs.nl/mailman/listinfo/dbmail Please always check the archives first. or check out the dbmail website at http://www.dbmail.org. Please note that DBMail logs a lot of relevant data to the maillog (often located at /var/log/maillog or /var/log/mail.log). This can help you often if something is not working, e.g. if there's no connection to the database.