wget http://ftp.unicamp.br/pub/postfix/official/postfix-2.6.3.tar.gz
tar zxvf postfix-2.6.3.tar.gz
cd postfix-2.6.3/
make
useradd -s /sbin/nologin -d /dev/null postfix
groupadd postdrop

make install

最后一步选择postdrop

=================

vi /etc/postfix/main.cf

queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
mail_owner = postfix
mydomain = domain.com
myhostname = mail.$mydomain
myorigin = $mydomain
relay_domains = $mydomain
mynetworks = 10.143.0.0/16, 10.142.0.0/16, 127.0.0.1/8
unknown_local_recipient_reject_code = 550
debug_peer_level = 2
debugger_command =
PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
xxgdb $daemon_directory/$process_name $process_id & sleep 5
sendmail_path = /usr/sbin/sendmail
newaliases_path = /usr/bin/newaliases
mailq_path = /usr/bin/mailq
setgid_group = postdrop
html_directory = no
manpage_directory = /usr/local/man
sample_directory = /etc/postfix
readme_directory = no

命令行测试

(hostname;date )| mail -s "alert !!! $(date +%Y年%m月%d日 %H时%M分%S秒)" < mail_body username@domain.com -- -f master@domain_desc.cn -F "mail_sender"

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linux 下postfix安装

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