八、安装postfix
1.添加用户和组
groupadd postfix useradd -g postfix postfix groupadd postdrop useradd -g postdrop postdrop
2.安装并配置:
tar -zxvf postfix-2.7.2-RC2.tar.gz cd postfix-2.7.2-RC2 make makefiles 'CCARGS=-DHAS_MYSQL -I/usr/local/mysql/include/mysql -DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/local/sasl2/include/sasl -I/usr/local/BerkeleyDB/include -DUSE_TLS -I/usr/local/ssl/include/openssl ' 'AUXLIBS=-L/usr/local/mysql/lib/mysql -lmysqlclient -lz -lm -L/usr/local/sasl2/lib -lsasl2 -L/usr/local/BerkeleyDB/lib -L/usr/local/ssl/lib -lssl -lcrypto' make make install
make install后会出现提示进行安装，可以一路回车，也可以按提示并根据自己的需要进行配置,我这里的显示如下 ：
Please specify the prefix for installed file names. Specify this ONLY
if you are building ready-to-install packages for distribution to other
machines.
install_root: [/] /
Please specify a directory for scratch files while installing Postfix. You
must have write permission in this directory.
tempdir: [/root/postfix_soft/postfix-2.7.2-RC2] /tmp
Please specify the final destination directory for installed Postfix
configuration files.
config_directory: [/etc/postfix]
Please specify the final destination directory for installed Postfix
administrative commands. This directory should be in the command search
path of adminstrative users.
command_directory: [/usr/sbin]
Please specify the final destination directory for installed Postfix
daemon programs. This directory should not be in the command search path
of any users.
daemon_directory: [/usr/libexec/postfix]
Please specify the final destination directory for Postfix-writable
data files such as caches or random numbers. This directory should not
be shared with non-Postfix software.
data_directory: [/var/lib/postfix]
Please specify the destination directory for the Postfix HTML
files. Specify “no” if you do not want to install these files.
html_directory: [no]
Please specify the owner of the Postfix queue. Specify an account with
numerical user ID and group ID values that are not used by any other
accounts on the system.
mail_owner: [postfix]
Please specify the final destination pathname for the installed Postfix
mailq command. This is the Sendmail-compatible mail queue listing command.
mailq_path: [/usr/bin/mailq]
Please specify the destination directory for the Postfix on-line manual
pages. You can no longer specify “no” here.
manpage_directory: [/usr/local/man]
Please specify the final destination pathname for the installed Postfix
newaliases command. This is the Sendmail-compatible command to build
alias databases for the Postfix local delivery agent.
newaliases_path: [/usr/bin/newaliases]
Please specify the final destination directory for Postfix queues.
queue_directory: [/var/spool/postfix]
Please specify the destination directory for the Postfix README
files. Specify “no” if you do not want to install these files.
readme_directory: [no]
Please specify the final destination pathname for the installed Postfix
sendmail command. This is the Sendmail-compatible mail posting interface.
sendmail_path: [/usr/sbin/sendmail]
Please specify the group for mail submission and for queue management
commands. Specify a group name with a numerical group ID that is
not shared with other accounts, not even with the Postfix mail_owner
account. You can no longer specify “no” here.
setgid_group: [postdrop]
注：如果出现bin/postconf: error while loading shared libraries: libmysqlclient.so.16: cannot open shared object file: No such file or directory 的错误，解决方法如下：
ln -s /usr/local/mysql/lib/mysql/libmysqlclient.so.16 /usr/lib/libmysqlclient.so.16
3.生成二进制文件
newaliases
4.修改postfix的main.cf文件
vim /etc/postfix/main.cf 找到以下几项进行修改
myhostname = mail.lsanotes.cn myorigin = lsanotes.cn mydomain = lsanotes.cn mydestination = mynetworks = 192.168.10.0/24, 127.0.0.0/8
并在该文件的最后添加:
broken_sasl_auth_clients = yes smtpd_recipient_restrictions=permit_mynetworks,permit_sasl_authenticated,reject_invalid_hostname,reject_non_fqdn_hostname,reject_unknown_sender_domain,reject_non_fqdn_sender,reject_non_fqdn_recipient,reject_unknown_recipient_domain,reject_unauth_pipelining,reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_local_domain = $myhostname smtpd_sasl_security_options = noanonymous smtpd_sasl_application_name = smtpd smtpd_banner = Welcome to our $myhostname ESMTP,Warning: Version not Available! virtual_mailbox_base = /usr/mailbox virtual_mailbox_maps = mysql:/etc/postfix/mysql_virtual_mailbox_maps.cf virtual_mailbox_domains = mysql:/etc/postfix/mysql_virtual_domains_maps.cf virtual_alias_domains = virtual_alias_maps = mysql:/etc/postfix/mysql_virtual_alias_maps.cf virtual_uid_maps = static:105 virtual_gid_maps = static:113 virtual_transport = virtual maildrop_destination_recipient_limit = 1 maildrop_destination_concurrency_limit = 1 message_size_limit = 14336000 |virtual_mailbox_limit = 20971520 virtual_create_maildirsize = yes virtual_mailbox_extended = yes virtual_mailbox_limit_maps = mysql:/etc/postfix/mysql_virtual_mailbox_limit_maps.cf virtual_mailbox_limit_override = yes virtual_maildir_limit_message = Sorry, the user's maildir has overdrawn his diskspace quota,please Tidy your mailbox and try again later. virtual_overquota_bounce = yes
5.在/etc/postfix下建立虚拟域和虚拟用户相关的配置文件
vim mysql_virtual_alias_maps.cf
user = extmail password = extmail hosts = localhost dbname = extmail table = alias select_field = goto where_field = address
vim mysql_virtual_limit_maps.cf
user = extmail password = extmailisi hosts = localhost dbname = extmail table = mailbox select_field = quota where_field = username
vim mysql_virtual_mailbox_maps.cf
user = extmail password = extmailisi hosts = localhost dbname = extmail table = mailbox select_field = maildir where_field = username
vim mysql_virtual_domains_maps.cf
user = extmail password = extmailisi hosts = localhost dbname = extmail table = domain select_field = description where_field = domain
