postfix 是邮件服务器，就是发邮件的。
那dovecot就是代收邮件的？
postfix的配置很麻烦，这是我到处抄来的一个配置，同时支持smtp和smtps协议
main.cf
--- main.cf.org 2011-03-20 13:55:24.000000000 +0800 +++ main.cf 2011-03-23 10:00:46.000000000 +0800 @@ -694,3 +694,29 @@ inet_protocols = all biff = no +myhostname = poetpalace.org +myorigin = $myhostname +inet_interfaces = all +mydestination = $myhostname, localhost.$mydomain, localhost, mail.poetpalace.org +mynetworks = 127.0.0.0/8 +#relay_domains = $mydestination, qq.com, gmail.com + +smtp_use_tls=yes +smtpd_use_tls=yes +smtp_tls_note_starttls_offer=yes +smtpd_tls_key_file=/etc/postfix/smtpd.pem +smtpd_tls_cert_file=/etc/postfix/smtpd.pem +smtpd_tls_CAfile=/etc/postfix/smtpd.pem +smtpd_tls_loglevel=1 +smtpd_tls_received_header=yes +smtpd_tls_session_cache_timeout=3600s +tls_random_source=dev:/dev/urandom + +smtpd_sasl_auth_enable = yes +smtpd_delay_reject = yes +broken_sasl_auth_clients = yes +smtpd_sasl_security_options=noanonymous +smtpd_sasl_type=dovecot +smtpd_sasl_path=private/auth +smtpd_client_restrictions=permit_sasl_authenticated +smtpd_recipient_restrictions=permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
master.cf
--- master.cf.org 2011-03-20 13:55:33.000000000 +0800 +++ master.cf 2011-03-23 10:05:38.000000000 +0800 @@ -15,8 +15,8 @@ #submission inet n - n - - smtpd # -o smtpd_etrn_restrictions=reject # -o smtpd_client_restrictions=permit_sasl_authenticated,reject -#smtps inet n - n - - smtpd -# -o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes +smtps inet n - n - - smtpd + -o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes #submission inet n - n - - smtpd # -o smtpd_etrn_restrictions=reject # -o smtpd_enforce_tls=yes -o smtpd_sasl_auth_enable=yes
还有几个数据库文件要生成
newaliases #这个生成/etc/aliases.db postmap hash:/etc/postfix/relay postmap hash:/etc/postfix/virtual
好了，service postfix restart，提示说done了
service postfix status，没结果，没说running 也没说stop。
nmap localhost 果然没发现25和465端口。
tail -f /var/log/mail，发现报错，google之……然后发现是个很orz的问题，原来就好像弄了蛮久的，不过没做笔记，忘了。
vim /etc/services，查找465，看看上面是什么：一个叫urd的协议，这是啥？注释掉，加上一行 smtps 465/tcp。
service postfix restart
done