Adding upstream version 3.7.10.upstream/3.7.10

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 135 insertions, 0 deletions

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+PPoossttffiixx MMyySSQQLL HHoowwttoo
+
+-------------------------------------------------------------------------------
+
+IInnttrroodduuccttiioonn
+
+The Postfix mysql map type allows you to hook up Postfix to a MySQL database.
+This implementation allows for multiple mysql databases: you can use one for a
+virtual(5) table, one for an access(5) table, and one for an aliases(5) table
+if you want. You can specify multiple servers for the same database, so that
+Postfix can switch to a good database server if one goes bad.
+
+Busy mail servers using mysql maps will generate lots of concurrent mysql
+clients, so the mysql server(s) should be run with this fact in mind. You can
+reduce the number of concurrent mysql clients by using the Postfix proxymap(8)
+service.
+
+BBuuiillddiinngg PPoossttffiixx wwiitthh MMyySSQQLL ssuuppppoorrtt
+
+These instructions assume that you build Postfix from source code as described
+in the INSTALL document. Some modification may be required if you build Postfix
+from a vendor-specific source package.
+
+Note: to use mysql with Debian GNU/Linux's Postfix, all you need is to install
+the postfix-mysql package and you're done. There is no need to recompile
+Postfix.
+
+The Postfix MySQL client utilizes the mysql client library, which can be
+obtained from:
+
+    http://www.mysql.com/downloads/
+
+In order to build Postfix with mysql map support, you will need to add -
+DHAS_MYSQL and -I for the directory containing the mysql headers, and the
+mysqlclient library (and libm) to AUXLIBS_MYSQL, for example:
+
+    make -f Makefile.init makefiles \
+        'CCARGS=-DHAS_MYSQL -I/usr/local/mysql/include' \
+        'AUXLIBS_MYSQL=-L/usr/local/mysql/lib -lmysqlclient -lz -lm'
+
+If your MySQL shared library is in a directory that the RUN-TIME linker does
+not know about, add a "-Wl,-R,/path/to/directory" option after "-lmysqlclient".
+
+Postfix versions before 3.0 use AUXLIBS instead of AUXLIBS_MYSQL. With Postfix
+3.0 and later, the old AUXLIBS variable still supports building a statically-
+loaded MySQL database client, but only the new AUXLIBS_MYSQL variable supports
+building a dynamically-loaded or statically-loaded MySQL database client.
+
+    Failure to use the AUXLIBS_MYSQL variable will defeat the purpose of
+    dynamic database client loading. Every Postfix executable file will have
+    MYSQL database library dependencies. And that was exactly what dynamic
+    database client loading was meant to avoid.
+
+On Solaris, use this instead:
+
+    make -f Makefile.init makefiles \
+        'CCARGS=-DHAS_MYSQL -I/usr/local/mysql/include' \
+        'AUXLIBS_MYSQL=-L/usr/local/mysql/lib -R/usr/local/mysql/lib \
+            -lmysqlclient -lz -lm'
+
+Then, just run 'make'. This requires libz, the compression library. Older mysql
+implementations build without libz.
+
+UUssiinngg MMyySSQQLL ttaabblleess
+
+Once Postfix is built with mysql support, you can specify a map type in main.cf
+like this:
+
+    alias_maps = mysql:/etc/postfix/mysql-aliases.cf
+
+The file /etc/postfix/mysql-aliases.cf specifies lots of information telling
+Postfix how to reference the mysql database. For a complete description, see
+the mysql_table(5) manual page.
+
+EExxaammppllee:: llooccaall aalliiaasseess
+
+#
+# mysql config file for local(8) aliases(5) lookups
+#
+
+# The user name and password to log into the mysql server.
+user = someone
+password = some_password
+
+# The database name on the servers.
+dbname = customer_database
+
+# For Postfix 2.2 and later The SQL query template.
+# See mysql_table(5) for details.
+query = SELECT forw_addr FROM mxaliases WHERE alias='%s' AND status='paid'
+
+# For Postfix releases prior to 2.2. See mysql_table(5) for details.
+select_field = forw_addr
+table = mxaliases
+where_field = alias
+# Don't forget the leading "AND"!
+additional_conditions = AND status = 'paid'
+
+# This is necessary to make UTF8 queries work for Postfix 2.11 .. 3.1,
+# and is the default setting as of Postfix 3.2.
+option_group = client
+
+AAddddiittiioonnaall nnootteess
+
+Postfix 3.2 and later read [[cclliieenntt]] option group settings by default. To
+disable this, specify no ooppttiioonn__ffiillee and specify "ooppttiioonn__ggrroouupp ==" (i.e. an
+empty value).
+
+Postfix 3.1 and earlier don't read [[cclliieenntt]] option group settings unless a non-
+empty ooppttiioonn__ffiillee or ooppttiioonn__ggrroouupp value are specified. To enable this, specify,
+for example "ooppttiioonn__ggrroouupp == cclliieenntt".
+
+The MySQL configuration interface setup allows for multiple mysql databases:
+you can use one for a virtual table, one for an access table, and one for an
+aliases table if you want.
+
+Since sites that have a need for multiple mail exchangers may enjoy the
+convenience of using a networked mailer database, but do not want to introduce
+a single point of failure to their system, we've included the ability to have
+Postfix reference multiple hosts for access to a single mysql map. This will
+work if sites set up mirrored mysql databases on two or more hosts. Whenever
+queries fail with an error at one host, the rest of the hosts will be tried in
+random order. If no mysql server hosts are reachable, then mail will be
+deferred until at least one of those hosts is reachable.
+
+CCrreeddiittss
+
+  * The initial version was contributed by Scott Cotton and Joshua Marcus, IC
+    Group, Inc.
+  * Liviu Daia revised the configuration interface and added the main.cf
+    configuration feature.
+  * Liviu Daia with further refinements from Jose Luis Tallon and Victor
+    Duchovni developed the common query, result_format, domain and
+    expansion_limit interface for LDAP, MySQL and PostgreSQL.
+