Script sent_userinfo_postfix.sh: add support for MySQL database.

conf/sent_userinfo_postfix.conf.sample

@@ -22,14 +22,46 @@
 # -
 # - Example: 'oo@oopen.de'
 # -
-#email_from=""
+email_from=""
 
 
 # - email_from_org
 # -
 # - Example: email_from_org="O.OPEN"
 # -
-#email_from_org=""
+email_from_org=""
+
+
+# - db_type
+# -
+# - Type of Postfix Database
+# -
+# - Possible values are 'pgsql' (PostgeSQL) or 'mysql' (MySQL)
+# - 
+# - Defaults to: db_type="pgsql"
+# -
+#db_type="pgsql"
+
+# - db_name
+# -
+# - Database name for the postfix database
+# - 
+# - Defaults to: db_name="postfix"
+# -
+#db_name="postfix"
+
+# - mysql_credential_args (root access to MySQL Database)
+# -
+# - Example
+# -    mysql_credential_args="--login-path=local"
+# -    mysql_credential_args="--defaults-file=/etc/mysql/debian.cnf" (Debian default)
+# -    mysql_credential_args="--defaults-file=/usr/local/mysql/sys-maint.cnf"
+# -
+# - Defaults to:
+# -    '/etc/mysql/debian.cnf' if MySQL is installed from debian package system
+# -    '/usr/local/mysql/sys-maint.cnf' otherwise
+# -
+#mysql_credential_args=""
 
 
 # - mail_user